@TheRockisSmokin, trucks have more gears than you could throw a stick at, equipment is more heavy duty and require this technique to minimise the damage in the gear boxes, some or most trucks have two gear boxes for high and low gearing and are usually fitted with two clutches and a clutch brake hence the reason for the double clutching, plus it saves strain on the motor to prevent it from jerking during shifting.
When i first started i double clutched alot but then i got the hang of floating my clutch its a little bit harder to master but more fuel efficient and better
Aside from beginners, who the hell double clutches once they get experience? Pain in the ass. A lot of companies will get in your shit if you double clutch during a driving test to get a job. The dude will tell you, " never had to replace the clutch on this truck and we don't plan to. Learn how to float the gears". Float them gears! Saves the clutch and your leg, especially if you do local work with a lot of stops.
@peetee1000 I guess they don't keep their trucks past the 300K warranty then, because a clutch that is babied will still only last to about 600K miles under the best of circumstances, and you answered your own question in the first line. If you would have read the intro, you would have known that I did this specifically for people who are just learning.
@John19182004 Actually, it is much harder on the tranny to float when you are just learning how, and everyone misses one now and again. Also, they teach you to do what they call "pre-select" when going from the low side to the high side in the schools, and that is also bad for the tranny, wears on the shift forks.
@piratebobstreasure woohoo, someone knows not to double clutch it like a four speed. i have literally seen guys who put the clutch to the floor when shifting, they obviously dont know what a clutch brake is.
Double clutch vs floating.. I have 12 years exp driving and 10 years exp as a certified mechanic. yes clutching wears clutch a little. floating if not done 100% correctly 100% of the time wears the hell out of the tranny. tranny cost thousands, a clutch costs hundreds. which would you like to replace. i have ridden with drivers with 20 years exp who float, and every 10 shifts or so they grind a little. nobody is perfect 100% of the time!!!
Hi I have been double clutching for 5 years I drive exactly like this vid I can drive without a clutch but find it much easier and smoother round town to use the clutch I have since started a new job and constantly have arguements with a bloke who has a lesser licence class and who drives a road ranger with out a clutch who doesnt even have a road ranger licence who learnt on an auto but insists I will ruin the truck by using the clutch I have done interstate and country is he wrong? I reckon so
Thanks a bunch! This is the best double-clutching video I've seen yet! Georgia law requires you to double-clutch on your CDL driving test. What you do "in the real world" is a different story.
I am a 48yo woman never been in a truck before. I went for my first lesson in Broome and went back home thinking NO WAY. I looked on YOUTUBE hoping for some help or inspiration and found you. After watching a number of times I sat on the side of my bed and practised or AIR practised if you like my gear changes. Next day I NAILED IT The instructor said "whatever your doing keep it up".So thank you thankyou thankyou I now have my liscence
@truckerFG I was not coming to a stop, just slowing down at that moment. You should never just coast in neutral unless you are coming to a complete stop and have already slowed down to a safe speed. What's a safe speed? Depends upon how much weight you're hauling.
I only use clutch 1st & reverse only..or unless I don't have the road speed going up inclines...but thats just me...my loads are not more then 30k so im good...When Double clutching,Just get your Revs up in 1st ( clutch n shift to N ) THEN( quickly clutch n drop into 2nd) If done at correct RPM's truck will shift like a knife going through butter. Peace...safe travels!
I only use clutch 1st & reverse only..or unless I don't have the road speed going up inclines...but thats just me...my loads are not more then 30k so im good
@Thinker669 Depends. Many still do, some, like Volvos for instance, have optional fully synchronized transmissions in them, and many fleets are spec'ing automatics in their new rigs, since they tend to get better overall fleet fuel economy averages that way, but their maintenance costs are soaring as well, since the auto shifters where out clutches in half the time, some as quickly as one year!
@PSNgregiskool On those old trucks, you have to push the clutch all the way to the floor each time, but it would be much easier to float them instead.
double clutching seems like a waste, gotten over 900k so far on a clutch with 3 differant drivers that drive that truck and none of us use the clutch, the thing is so old the clutch will only let you take it out of gear anyway, no matter what rpm u have it will just gring if you try to clutch it into gear.
i dont get the whole doubble cluctching technique i tried it in my 87 w900 and no luck i just get a whole lot of mesh noise so i just stick to floating the gears like eaton now recomends i can do that with no noise no gringing no vibration nothin its way easier than double clutching all you have to go is match the engine speed to the transmition speed
@serutcip1 Just keep practicing. You had to learn how to float, that means you can learn to double-clutch. Both techniques are good to know well in case you run into problem where you can't use one or the other.
wow well i had my first HR lesson today(first day in truck ever).. was a nightmare with getting double clutching right.. why cant it just be like a car :'(
Hi. I saw your post from three months ago. I just had my first lesson last night and it was a nightmare especially on the downshifting. Did the double clutching get easier. How did you make out
in fact I have driven 30miles or so with a broken clutch (release forks snapped) without once grinding the gears, stopping was out of the question though...
You can handle the stops by turning off the engine and putting the trans in low gear, time to go start it and go, kind of rough on the starter if you are loaded but it can be done in a pinch.
I just Idled up to the lights and hoped they would change in time, didn't want to risk being stranded with broken starter or flat battery, but I did do that to get it moving in the first place. Stopping is possible but I just kept it moving to save the starter and battery.
the entire point is to match flywheel speed, input shaft speed and output shaft speed so as to remove any jerking during the re-uptake of drive, this reduces stress on all the components of the gearbox, stops power being lost as heat in the clutch and stops your load being thrown about. it can be done in any manual vehicle, but is NEEDED in gearboxes without synchromesh you have to mesh the gears yourself. if you do successfully match all three you dont need the clutch.
The last time I drove a truck that needed any double clutching was an old B model Mack, even the Mack it was only now and then but on any truck in the last 15 years, what a waste of time.
Looking forwards to doing this one day when I put the old LandRover crashbox transmission into my '72 Land Rover. Their old crashboxes were stronger than their synchro transmission.
I love the idea of double clutching, except for maybe when you're trying to downshit while offroad in boggy sand.
On a non synchronized transmission (crashbox), if you try to shift into the next gear without revmatching the input shaft, you'll grind the hell out of it.
It doesn't work like the synchronized transmissions in regular cars.
Not all big rigs have crashboxes, but most of the larger ones do.
I had my first day of truck driving school today (CDL A) and the guy who was teaching me to double clutch was a real jerk. I totally did not get it and he was totally pissed off at me. Your video was very helpful. Can you put one up showing both the clutch and the gears?
i just got my class B. i'm interested in going for class A now. i'm olny use to using synchronized transmissions. as a rookie, do you think i'll be able to do clutchless shifting right away or will it take me awhile to get a feeling for it? i mean, i've felt the clutch pedal in a pete 379 and boy is it heavy! my foot would hurt at the end of the day!
Daß das Schalten ohne zu kuppeln gewaltig aufs Getriebe geht, auch wenn die Drehzahl angepasst wird, wißt ihr aber schon? Kupplung muß beim Schalten immer getreten werden, und normalerweise braucht man heutzutage auch kein Zwischenkuppeln/Zwischengas, da moderne Getriebe Synchronisiert sind, und sich Drehzahl von Motor und Getriebewelle automatisch anpassen ;-).
Is floating the gears just another way of saying you're not using the clutch? I live down south where it flat and my first instructer didn't teach me double clutching but the second one said no job will hire me if ididn't know how to double clutch.
Yes, and I've gotten plenty of jobs where I passed the driving test without using the clutch. None have ever turned me down because of a lack of using the clutch...yet.
also, the clutchbrake is towards the end of clutch travel. this stops the gears from turning so they can mesh at a standstill. clutching all the way will wear out the clutchbrake prematurely. one of my trucks has practically zero clutchbrake and you'd better get it in gear just before you stop, otherwise you'll sit like a retard. it'll grind and won't go into gear. embarassing. going into reverse always sucks too, unless there's a hill.
I do. You don't need to rev the engine when shifting into a higher gear because that gear's going to turn more slowly than will the lower gear. You do have to rev the engine when you downshift, so it's a good thing to know how to double-clutch when downshifting.
The clutch should be used to absorb some of the differences between the engine and drive line. Failure to do so will eventually tear the center out of the clutch.
Sorry I think you misunderstood as I double clutch most of the time. I was responding to others who think you shouldn't use it except to start and stop.
If you clutch it all the time, clutch life is cut dramatically! You'll be replacing it around 300K-400K miles. If you float it all the time, clutch life is dramatically extended! Think one clutch in over 500K, and some people have reported over one million miles on one clutch this way. My personal best is 728K. So, the cost of clutch changes at the more frequent rate versus the odd chance that you might tear the clutch up by not using it all the time and the odds are in favor of not using it.
how about using it only when downshifting? i don't want to run the risk of crunching anything. it's also easier to get it out of gear sometimes when you break torque.
after 35 years of driving and the tractor engine noise my hearing is really bad i was forced to give it up , you guys out there should have your hearing tested its a ringing that will drive you crazy and there;s nothing that can be done to correct it .miss driving over the road
Thanks for this trucker. Im doing my road test tomorrow and im required to double clutch on my gear changes. Though its quite standard for people to just not use the clutch.
Still not sure whether using the clutch or not is better for the long term maintenance of the truck. But I was taught to use the clutch only for starting.
Floating is better for the truck. Makes the clutch last nearly twice as long, and if you can do it without dragging gears, the tranny won't be damaged, either.
@dieselfumes34 I disagree floating won't necessarily increase your clutch life, throwout bearing yes but not the clutch itself as long as you not still completing the shift when your applying power wear is not going to be greaty reduced (this depends on the driver too. Spicer and Fuller gearboxes have long been designed to smoothly float between gears as long as you aren't trying to change under load and allow time for the syncro rings to do their job. How did your test go?
I learned to doubel clutch today and once I understood the concept of how it work, and got the coordination down, it is actaully fun!! My dad owns 5 tow trucks and is teaching me so I can drive the trucks, so he is teaching me double clutching first, so I dont have to re-learn it later for my licence, ill do it right the first time!
Great video. The trend over here is to automatics...This is proper truck [lorry] driving. All the old British lorries were 'constant mesh' or 'crash' boxes. Eaton
David Brown and Foden were just a few. Really enjoyed that! Young drivers today don't understand the art of matching road speed with engine revs..Happy days.
No insult intended! I'm talking about young LORRYdrivers that have never encountered an Eaton, Fuller or Spicer box. They are trained using syncro lorries only. They fall apart when they first encounter a 'straight' box but of course soon learn the ropes when shown. Its very easy to double declutch a car because I presume the car you drive has a syncro transmission? Lorry gearboxes are completely different to passenger car vehicles. Thanks for your comment anyway. Cheers, J.
my dad just floats thru the gears he only uses the clutch to take off when he shifts he dont use the clutch they teach people to use the clutch and its bad
Because it wears the clutch out too fast, and replacing a clutch in one of these big trucks is VERY expen$ive!!! Clutching all the time will usually wear out a clutch in 300K-400K miles, where as floating the gears will let the clutch last MUCH longer. Well over 500K miles easily.
Exactly Bob, Its difficult to explain this to guys that have never driven an older heavy lorry [truck!] With the Eaton twin splitter you only use the clutch when first moving off as you have explained. From that point you match road speed to engine speed and obtain very smooth changes. Constant use of the clutch would certainly wear it out putting 40 tons through the transmission. Official Eaton information states the clutch need not be used once the box is mastered.I back you on this one. J.
Sorry but you're wrong. ;) This isn't a car or light truck, it's a whole different kind of gearbox, and a lot smaller span between gears with an engine that doesn't speed up or slow down as fast as a light duty equivalent. Floating save driver fatigue, linkage wear, clutch wear, and is not much different than double clutching. Double clutching just lets you break friction then slow the shaft, and all you need is slow the shaft. :)
Thank you very much for posting this video. The company I'm going to work for requires double clutching on all shifts (up and down) and I was taught to single clutch on the downshifts. I was just lucky I passed the driving test to get the job and get to go out with a trainer. Again, thank you. It really helps a lot.
There is no synchronizer in the big rig tranny so you have to do it manually. the first time the clutch is engaged he pulls it out of gear, lets up on the clutch lets rpms drop to match higher gear engages clutch & shifts into the higher gear. it takes practice to get it smooth.
That was great Thank you. I am having trouble the other way, Down shifting, the extra rev in-between is killing me, I need to ace it to go to the next level in my class.
Any suggestions? Serious ones please no "just give it up" etc. I need to complete the class, so I can get a job and feed my family,
Thanks! I guess a quarter century in the saddle and over 4 million miles has given me plenty of practice! (Just recently got a 4 million mile safe driving award!)
uh-oh, I remember when I got my first safe driving award. 15 minutes late,r in a 3-point u-turn in Anaheim, Ca, I tailswung a 53' into brand new car pushing it into a brand new truck. That taught me a bunch about safe-driving. When I returned to the yard I told the truck boss that I thought he should keep the award.
Never did see or feel the trailer crush that luxury car.
YES! Finally, someone that thinks like me. Some of my mates really trottle the gear shifter and smash the gears in - i always tell them - do it with feeling - gently - they should slip in themselves!
Some of them also rest their foot on the clutch pedal - they also don't believe me when i tell them not to cause it can press the clutch a bit causing slipage and therefore overheating and ending up with a worn clutch. Very important when towing heavy loads (150 to 200 tonne) - don't want slipage
Shifting by feel is best felt through the stick. Not the steering wheel. The stick is connected directly to the transmission which is connected to the engine.
The best way I can describe it is vibrational frequencies that match the speed of the engine. It's harder to explain than to demonstrate. Some get it, some don't.
Another thing about shifting is the musical nature of it from a percussionist's point of view. Double clutching is like counting time 1 & 2 - 3 & 4
If one can hear, good, if not, feeling is about all one can go on.
Admittedly, not everyone can shift by feel.
It's an art form for sure that is very underappreciated.
You know, I might add that many truck drivers approach their job with the "I'm a truck driver, not a mechanic" attitude. Sooner or later they are going to need mechanical skill and wish they had learned mechanics. Fuel restriction comes to mind.
My brother who is a truck driver and owner of the contracting business is actually a qualified Diesel Mechanic and can do just about anything from pulling apart a RoadRanger, 20spd Spicer Box or overhauling a Cummins/ Cat engine.
I'm pretty good at the stuff also - but unfortunately never bothered to become a qualified mechanic. I just use my skills to do my own stuff and boy - am i glad i learnt it all - specially since i'm driving trucks - really helps!
Good for you. But don't ever be surprised if you find yourself jobhopping and the new boss says mechanical inclination is not important.
If you are ever told that, you can then ask yourself what kind of racket you just signed up with and already be wondering how long you are going to put up with it.
One outfit I got a hitch with was employed by college kids. One of em told me if it wasn't for her sitting at the computer I wouldn't have a job. It's times like that you have to learn to laugh.
Speaking of jobs, one of the biggest reasons for the economy here going south is due in large part to the closure and mass exodus of manufacturing that had been the backbone of the US. It's not a recent event, but has been going on since post WW2. Education has gone south here with little or no emphasis on productive vocational training. Educators cite that future generations will not need such training. It's bad...
It's not a simple problem - there are at least three partys who are responsible:
1)The Democratic party, for their liberalism.
2)The Republican party, for their conservatism.
3)The people themselves who vote either of the two political parties without considering that each consider the Government as a political agenda playground, rather than a place of governance.
Unfortunately, foolishness of the past is here to haunt us all for awhile.
If I were to offer anyone advice, it would be to do a lot of soul searching.
Among trucking firms, I would think that a company that transports vital natural resources would be a wise company to consider if offered the opportunity. Especially if the company has been in business over 50+ years.
Once employed, I would go back to school and learn as much as I could: subjects and areas that relate to the business that would benefit me later in life should health require. Something IwishI'ddone.
I had and still do a nasty hearing loss. DOT required me to wear hearing aids.
IMHO, that's no different than turning all that noise up louder & as a consequence, my ears are worse now than when I had started. I can't hear trucks go by at 2-300 feet away.
I can hear the low frequencies of the trash truck as it accellerates from can to can, & those damnable boom bass stereo thumpin' but I cant hear the birds, or the kids in the other room. If you wear hearing aids turn em down. Use yer eyes!
i know this video is just a demonstration for shifting using the double clutching technique but a good rule of thumb if you are using your jake brake is when the jake shuts off by itself at about 800-900 rpm, just downshift then, and after a while you will know the timing and you wont need ur tach u jsut go by feel.
Actually, Loaded on a grade, I had found that I could grab an extra gear (up-shifting) by using the Jakes (JB). The once personal theory proved true that by decellerating the Engine rpm's quicker with the JB than without.
thus I could hold a higher gear because I was in the powerband- of course it didn't ALWAYS work because the grade may be a bit steeper than anticipated.
Bare in mind, the last time I drove was eight years a go. A 379 Pete double sleep. 435 Cat 13 spd. Dnt rembr RA ratio.
I think you oughta learn how shift without the clutch. Here's why:
One time, I had delivered a forklift to a Reno customer. The forklift was in the nose and crowded by skids. While breaking the frklft's tire blocks free with a mallet, I swung and slammed the hammer dead on my left ankle - did that ever hurt! I could barely walk with it, for the pain. I climbed into the cab to proceed on to california and the only time I could bear clutching was from a dead start. I'm glad I mastered clutchless.
I honestly don't remember what I said, but I recall the pain was so intense I went into a state of shock for about a 1/2 hour during which I sat down on the edge of the dock with my legs hanging off the edge. Once I got myself together, it was grin and bear it for a few days.
What was worse was when I caught "epididymus", an infection of the testicle that feels like you been kicked in groin with all the effort one can muster. - that pain was nasty but I drove that C.O.E. for two weeks all over the US. bounce-a-bounce-a-pothole-here-a-pothole-there-bounce-a-bounce-a-everywhere. I was walkin' like an old bowlegged cowpoke from the previous century and yes, I was a team driver. - I couldn't tell which was worse - driving or sleeper berth time or walkin'.
If your driving different models all the time,or doing alot of city work or say your driving off road in deep mud and very heavy.You gotta be quick there isnt any time for the 2nd clutch.But you gotta clutch yourself out of gear if you want the transmission to feel like new forever. The truth is you can either shift non syncro or you cant.
you shouldn't have to clutch out of a gear or force it when not using the clutch because you have a short time frame in which it will just slide out of gear at the right rpm and then slide right back into another gear without even a click.
I can shift with or without.When your off road at the landfill its smoother clutching your self out of gear when your shifting.The speed bogs you down to fast for shifting without.My other point is clutching yourself out is smoother,easier and less wear on transmission.I like the tranny to feel like new.
its all driver preference, when done right shifting without the clutch is smoother and my transmission have always felt good after a million miles on them, it all depends on how its shifted and if you know what your doing
That's what i was going to say. If you know what you are doing you dont need to use the clutch other than to take off. i drive a big truck as well quint axle dump truck and i very rarely use the clutch.
After 15 years of driving i have yet to loose a clutch,transmission or axle!
Yes... many people don't understand why i bother to double clutch - but my brother-in-law and brother been doing the same thing as me (double-clutching) and none of us ever had gearbox or any driveline problems...
I like to have a truck fully manual with clutch - I'm not a big fan of these new 'Auto-Shift' gearboxes...
And yes... i've seen the insides of plenty of 13, 15 and 18 spead Eatons.... never seen the guts of a 20 speed spicer though!! must be quite something...
Oh and thanks for the vids man... that MACK TITAN is wicked - i wouldn't mind one myself... and thats saying something i'm usually a Kenworth or Western Star guy.
My brother is going to buy one for himself (his first truck) so i cannot wait to have drive. I just can't get over the fact it's capable of carring 2'000 litres of fuel...
I will let you know what it's like... might finally make a video on it.
Check out my favourited videos - you might find some interesting clips there.
I got a 18 speed, fully manual Road Ranger in my Kenoworth T908 and I double clutch all the time - it really helps to get into the right gear...
I usually tap the accelerator when i'm in neutral and the clutch is released before pressing the clutch and going into the next gear - it helps mesh the gears... and sounds wicked...
Don't take it out of gear until you have too. Coasting with the clutch pressed in is better than coasting in neutral and not being able to get into any gear at all. If you are already in neutral and coasting, check your speed and try for which ever gear you normally drive at that speed in, and if you can't get it, try the next higher gear or two even until you get one. Sometimes the correct gear will be lower than the one you tried, but not usually. And keep you foot off the accelerator.
look at your speed and add the two number together. example 35mph 3+5=8th gear. 25mph 2+5=7th gear. if you cant find it grind it. he he. also the pitch of grind noise listen to that to tell if your close.
may ask why do people double clutch instead of just straight shift into the gear ? plz sum1 tell me
TheRockisSmokin 2 weeks ago
@TheRockisSmokin, trucks have more gears than you could throw a stick at, equipment is more heavy duty and require this technique to minimise the damage in the gear boxes, some or most trucks have two gear boxes for high and low gearing and are usually fitted with two clutches and a clutch brake hence the reason for the double clutching, plus it saves strain on the motor to prevent it from jerking during shifting.
fairmontxf87 4 days ago
@fairmontxf87 thank u for explaining
TheRockisSmokin 3 days ago
@TheRockisSmokin, all good buddy.
fairmontxf87 3 days ago
When i first started i double clutched alot but then i got the hang of floating my clutch its a little bit harder to master but more fuel efficient and better
GhoZt562 1 month ago
student here with bad downshifting so I will watch the last part of this till i fall asleep
linoleumcarving 1 month ago
ur left leg must be built like a bodybuilders leg.
inktoxicated 2 months ago
Aside from beginners, who the hell double clutches once they get experience? Pain in the ass. A lot of companies will get in your shit if you double clutch during a driving test to get a job. The dude will tell you, " never had to replace the clutch on this truck and we don't plan to. Learn how to float the gears". Float them gears! Saves the clutch and your leg, especially if you do local work with a lot of stops.
peetee1000 3 months ago
@peetee1000 I guess they don't keep their trucks past the 300K warranty then, because a clutch that is babied will still only last to about 600K miles under the best of circumstances, and you answered your own question in the first line. If you would have read the intro, you would have known that I did this specifically for people who are just learning.
piratebobstreasure 3 months ago
better to float gears. easier, and better on transmission
John19182004 4 months ago
@John19182004 Actually, it is much harder on the tranny to float when you are just learning how, and everyone misses one now and again. Also, they teach you to do what they call "pre-select" when going from the low side to the high side in the schools, and that is also bad for the tranny, wears on the shift forks.
piratebobstreasure 3 months ago
holy shat
CheatCheaters 4 months ago
too much work, i think its easier if you just learn without a clutch. good in the long run
twisted5abi 5 months ago
Many thanks for posting this video. Your video is/was very informative.
gunhawk22 6 months ago
Modern semi?
Its 2011 already!
Where's the electronic paddle shifting?
generatrix999 7 months ago
@generatrix999 Don't you mean where is the auto-shift? LOL! (I HATE those things, BTW.)
piratebobstreasure 3 months ago
@piratebobstreasure woohoo, someone knows not to double clutch it like a four speed. i have literally seen guys who put the clutch to the floor when shifting, they obviously dont know what a clutch brake is.
speed150mph 3 months ago
@piratebobstreasure This is 13sp or 18sp Fuller???
And4ea8 1 month ago
Double clutch vs floating.. I have 12 years exp driving and 10 years exp as a certified mechanic. yes clutching wears clutch a little. floating if not done 100% correctly 100% of the time wears the hell out of the tranny. tranny cost thousands, a clutch costs hundreds. which would you like to replace. i have ridden with drivers with 20 years exp who float, and every 10 shifts or so they grind a little. nobody is perfect 100% of the time!!!
ktumbleweed 7 months ago
Is it true that double clutching wears ur clutch quicker
dexterr88 7 months ago
Hi I have been double clutching for 5 years I drive exactly like this vid I can drive without a clutch but find it much easier and smoother round town to use the clutch I have since started a new job and constantly have arguements with a bloke who has a lesser licence class and who drives a road ranger with out a clutch who doesnt even have a road ranger licence who learnt on an auto but insists I will ruin the truck by using the clutch I have done interstate and country is he wrong? I reckon so
tritty84 7 months ago
double clutching noob right here
chinchillawrangler 7 months ago
Thanks! Really helped me and the class out. Driving instructors appreciated it.
raedwulf7 8 months ago
Thanks a bunch! This is the best double-clutching video I've seen yet! Georgia law requires you to double-clutch on your CDL driving test. What you do "in the real world" is a different story.
mgnhll 8 months ago
I am a 48yo woman never been in a truck before. I went for my first lesson in Broome and went back home thinking NO WAY. I looked on YOUTUBE hoping for some help or inspiration and found you. After watching a number of times I sat on the side of my bed and practised or AIR practised if you like my gear changes. Next day I NAILED IT The instructor said "whatever your doing keep it up".So thank you thankyou thankyou I now have my liscence
purps221 9 months ago 4
@purps221 You are very welcome! You are the type person I made this video for in the first place.
piratebobstreasure 3 months ago
@truckerFG I was not coming to a stop, just slowing down at that moment. You should never just coast in neutral unless you are coming to a complete stop and have already slowed down to a safe speed. What's a safe speed? Depends upon how much weight you're hauling.
piratebobstreasure 9 months ago
@piratebobstreasure That's damn smooth, how long have you been driving that thing?
meandmyevo 7 months ago
@meandmyevo I had been in that particular truck only about a year when I made this video, but I've been a professional driver since 1984.
piratebobstreasure 3 months ago
I only use clutch 1st & reverse only..or unless I don't have the road speed going up inclines...but thats just me...my loads are not more then 30k so im good...When Double clutching,Just get your Revs up in 1st ( clutch n shift to N ) THEN( quickly clutch n drop into 2nd) If done at correct RPM's truck will shift like a knife going through butter. Peace...safe travels!
scallly64 1 year ago
@scallly64 Or they could just watch my other video called "Workin' Them Gears" where I show how I really do things.
piratebobstreasure 1 year ago
@piratebobstreasure sorry,wasnt trying to overstep you....I always try to help a guy asking a question
scallly64 1 year ago
I only use clutch 1st & reverse only..or unless I don't have the road speed going up inclines...but thats just me...my loads are not more then 30k so im good
scallly64 1 year ago
Do they still got double clutching for new semi trucks?
Thinker669 1 year ago
@Thinker669 Depends. Many still do, some, like Volvos for instance, have optional fully synchronized transmissions in them, and many fleets are spec'ing automatics in their new rigs, since they tend to get better overall fleet fuel economy averages that way, but their maintenance costs are soaring as well, since the auto shifters where out clutches in half the time, some as quickly as one year!
piratebobstreasure 1 year ago
How would you do this on a Deuce and a half?
PSNgregiskool 1 year ago
@PSNgregiskool On those old trucks, you have to push the clutch all the way to the floor each time, but it would be much easier to float them instead.
piratebobstreasure 1 year ago
double clutching seems like a waste, gotten over 900k so far on a clutch with 3 differant drivers that drive that truck and none of us use the clutch, the thing is so old the clutch will only let you take it out of gear anyway, no matter what rpm u have it will just gring if you try to clutch it into gear.
wtfmanicanthaveaname 1 year ago
Double clutching is the craziest thing in the world to do. I know, I'm a mechanic and a truck driver.
lonestar6271 1 year ago
Cool, getting mouse-eye view here will help in class this next week when we learn to double-clutch shift....
tuts40 1 year ago
Thanks
dwfulton1 1 year ago
This is the greatest. Would love to see it in 3D.
Sol2u 1 year ago
shifting is the hardest thing I have ever encountered, it requires too many things to happen to do it properly and you are constantly doing it.
neil78b 1 year ago
hey wat kind of peterbilt is that????
Webber362 2 years ago
@Webber362 1996 model 379
piratebobstreasure 1 year ago
y do people double clutch?
454sskilla 2 years ago
i dont get the whole doubble cluctching technique i tried it in my 87 w900 and no luck i just get a whole lot of mesh noise so i just stick to floating the gears like eaton now recomends i can do that with no noise no gringing no vibration nothin its way easier than double clutching all you have to go is match the engine speed to the transmition speed
serutcip1 2 years ago
@serutcip1 Just keep practicing. You had to learn how to float, that means you can learn to double-clutch. Both techniques are good to know well in case you run into problem where you can't use one or the other.
sykokane 1 year ago
dadgumn! you make it look sooooo easy
RedHeadRadulf83 2 years ago
wow well i had my first HR lesson today(first day in truck ever).. was a nightmare with getting double clutching right.. why cant it just be like a car :'(
jemska 2 years ago
Hi. I saw your post from three months ago. I just had my first lesson last night and it was a nightmare especially on the downshifting. Did the double clutching get easier. How did you make out
sshawnw 1 year ago
Your approach is best for sure, low gear and starter only as a last resort, :-))
MerlinxPV 2 years ago
in fact I have driven 30miles or so with a broken clutch (release forks snapped) without once grinding the gears, stopping was out of the question though...
ingrowntoenailman 2 years ago
You can handle the stops by turning off the engine and putting the trans in low gear, time to go start it and go, kind of rough on the starter if you are loaded but it can be done in a pinch.
MerlinxPV 2 years ago
I just Idled up to the lights and hoped they would change in time, didn't want to risk being stranded with broken starter or flat battery, but I did do that to get it moving in the first place. Stopping is possible but I just kept it moving to save the starter and battery.
ingrowntoenailman 2 years ago
the entire point is to match flywheel speed, input shaft speed and output shaft speed so as to remove any jerking during the re-uptake of drive, this reduces stress on all the components of the gearbox, stops power being lost as heat in the clutch and stops your load being thrown about. it can be done in any manual vehicle, but is NEEDED in gearboxes without synchromesh you have to mesh the gears yourself. if you do successfully match all three you dont need the clutch.
ingrowntoenailman 2 years ago
The last time I drove a truck that needed any double clutching was an old B model Mack, even the Mack it was only now and then but on any truck in the last 15 years, what a waste of time.
MerlinxPV 2 years ago
Looking forwards to doing this one day when I put the old LandRover crashbox transmission into my '72 Land Rover. Their old crashboxes were stronger than their synchro transmission.
I love the idea of double clutching, except for maybe when you're trying to downshit while offroad in boggy sand.
subasurf 2 years ago
it depends on the transmition cos u dont double clutch in every truck
DAF460 2 years ago
you can if you want
WVhoeman 2 years ago
I don't understand the point of double clutching. I just seems it would be faster and easier to clutch once.
Why not accelerate, clutch in, shift up a gear, let off the clutch, accelerate again? What is the advantage of the double clutch?
dsmith308 2 years ago
On a non synchronized transmission (crashbox), if you try to shift into the next gear without revmatching the input shaft, you'll grind the hell out of it.
It doesn't work like the synchronized transmissions in regular cars.
Not all big rigs have crashboxes, but most of the larger ones do.
98snakeeater 2 years ago 3
Because if you don't doulbl;e clutch in an unsynct box, you will destroy it.
Unsynct boxes save weight in bigger trucks so they can tow more weight.
Most newer ones are different I think?
iruss71 2 years ago
So when you double clutch on upshift you don't give it any gas, right?
Clutch in
Move to neutral
Clutch release
Clutch in
Move to next gear
Clutch release
Is this correct?
yorpn 2 years ago
yeeup, simple as that. Downshifting is a little more tricky. I dont even clutch when i downshift.
mortson978 2 years ago
correct!
keesie75 2 years ago
i did my first truck driving lesson in australia today bit different to a 10 speed split shftt just have to get used to the down change
cjgr1984 2 years ago
I had my first day of truck driving school today (CDL A) and the guy who was teaching me to double clutch was a real jerk. I totally did not get it and he was totally pissed off at me. Your video was very helpful. Can you put one up showing both the clutch and the gears?
dubwise781 2 years ago
what driving school did you go to
MRTRAFFICLIGHTMAN 2 years ago
@MRTRAFFICLIGHTMAN Hard Knocks! Seriously though, my Dad taught me many years ago, (I started driving for a living in 1984).
piratebobstreasure 1 year ago
Good job, I think most people are trying to rip the clutch brake out of the truck when they double clutch it!
noahandshell 2 years ago
nahhh dude. left on the clutch. right toes on the brake. right heel on the throttle. heel-toe.
ibanezkid07 2 years ago
i just got my class B. i'm interested in going for class A now. i'm olny use to using synchronized transmissions. as a rookie, do you think i'll be able to do clutchless shifting right away or will it take me awhile to get a feeling for it? i mean, i've felt the clutch pedal in a pete 379 and boy is it heavy! my foot would hurt at the end of the day!
dannyW900 2 years ago
nice work mate!!
xRICHxBOIx 2 years ago
Daß das Schalten ohne zu kuppeln gewaltig aufs Getriebe geht, auch wenn die Drehzahl angepasst wird, wißt ihr aber schon? Kupplung muß beim Schalten immer getreten werden, und normalerweise braucht man heutzutage auch kein Zwischenkuppeln/Zwischengas, da moderne Getriebe Synchronisiert sind, und sich Drehzahl von Motor und Getriebewelle automatisch anpassen ;-).
Pummi1988 2 years ago
how do u float the gears?
in a semi
bigqman123 2 years ago
YEA, PETERBILT
moparguy318 2 years ago
Is floating the gears just another way of saying you're not using the clutch? I live down south where it flat and my first instructer didn't teach me double clutching but the second one said no job will hire me if ididn't know how to double clutch.
xmonteno 2 years ago
Yes, and I've gotten plenty of jobs where I passed the driving test without using the clutch. None have ever turned me down because of a lack of using the clutch...yet.
piratebobstreasure 2 years ago
this is good bro
12melb 2 years ago 2
Why is this guy barely pushing in the clutch every time he shifts gears?
hell5309 2 years ago
because the clutch releases very high in big trucks like this
nachos1990 2 years ago
also, the clutchbrake is towards the end of clutch travel. this stops the gears from turning so they can mesh at a standstill. clutching all the way will wear out the clutchbrake prematurely. one of my trucks has practically zero clutchbrake and you'd better get it in gear just before you stop, otherwise you'll sit like a retard. it'll grind and won't go into gear. embarassing. going into reverse always sucks too, unless there's a hill.
teamwounder 2 years ago
I was under the impression that you need to rev the engine in between clutching to get it up to the appropriate rpm for the next gear... anyone know?
TGNT 2 years ago
I do. You don't need to rev the engine when shifting into a higher gear because that gear's going to turn more slowly than will the lower gear. You do have to rev the engine when you downshift, so it's a good thing to know how to double-clutch when downshifting.
hell5309 2 years ago
The clutch should be used to absorb some of the differences between the engine and drive line. Failure to do so will eventually tear the center out of the clutch.
shifter3479 2 years ago 2
So if you double clutch you wreck the clutch?
How is it possible to double clutch from standing still to 1 gear ?
Dieselolds 2 years ago
Sorry I think you misunderstood as I double clutch most of the time. I was responding to others who think you shouldn't use it except to start and stop.
shifter3479 2 years ago
If you clutch it all the time, clutch life is cut dramatically! You'll be replacing it around 300K-400K miles. If you float it all the time, clutch life is dramatically extended! Think one clutch in over 500K, and some people have reported over one million miles on one clutch this way. My personal best is 728K. So, the cost of clutch changes at the more frequent rate versus the odd chance that you might tear the clutch up by not using it all the time and the odds are in favor of not using it.
piratebobstreasure 2 years ago 2
I've done over a million KMs on on the clutch in my last truck using the clutch all the time. We all have different ways of doing things.
shifter3479 2 years ago
how about using it only when downshifting? i don't want to run the risk of crunching anything. it's also easier to get it out of gear sometimes when you break torque.
teamwounder 2 years ago
What ?
Dieselolds 2 years ago 2
I just got my CDL class A permit and just started to learn the double clutch shifting and am struggling.
I am driving a 10 speed tractor and I notice that you up shift at 1700 rpm and down shift at 1200 rpm while slightly accelerating at the same time.
I am looking forward to when I can just float gears rather than double clutching.
Until I pass my skills test on pre-trip and in cab inspection with the inspector - then I will float gears.
Thanks for the video! I am going to use it as help.
monzanoman 2 years ago 2
It's 1500 and 1000 in some trucks. Don't get into bad habits.
JackStrangelove 2 years ago
yeh me to im struggling your not alone
fordsvtcobravick 2 years ago
I don't have a CDL, but I thought most of those guys float gears.
Meex1989 2 years ago
Yes, most do float gears.
Though for the school I was attending and by the state guidelines, we were supposed to double clutch.
I graduated last week from truck driving school.
monzanoman 2 years ago
after 35 years of driving and the tractor engine noise my hearing is really bad i was forced to give it up , you guys out there should have your hearing tested its a ringing that will drive you crazy and there;s nothing that can be done to correct it .miss driving over the road
689321546 2 years ago
WHAAATTTT???? My wife is used to hearing that out of me now, too. Occupational hazard, I guess.
piratebobstreasure 2 years ago
Thanks for this trucker. Im doing my road test tomorrow and im required to double clutch on my gear changes. Though its quite standard for people to just not use the clutch.
Still not sure whether using the clutch or not is better for the long term maintenance of the truck. But I was taught to use the clutch only for starting.
dieselfumes34 2 years ago
Floating is better for the truck. Makes the clutch last nearly twice as long, and if you can do it without dragging gears, the tranny won't be damaged, either.
piratebobstreasure 2 years ago
Pro truck driving schools, (mine anyways) tell you to double clutch all through the gears.
JackStrangelove 2 years ago
@dieselfumes34 I disagree floating won't necessarily increase your clutch life, throwout bearing yes but not the clutch itself as long as you not still completing the shift when your applying power wear is not going to be greaty reduced (this depends on the driver too. Spicer and Fuller gearboxes have long been designed to smoothly float between gears as long as you aren't trying to change under load and allow time for the syncro rings to do their job. How did your test go?
mozzmann 1 year ago
I'm about to do my driving lesson in a few days, this video has definatly helped me understand double clutching a little better. cheers!
Duckyseventy3 3 years ago
Great! Glad to know my efforts have helped out so many young drivers! This is what I made this video for.
piratebobstreasure 2 years ago
Lilbrudder32, the poin is regarding your pro-float stance:
Is it POSSIBLE to do that, say on an old Greyound bus or semi truck WITHOUT runing the GEARS!!! D
SteveCarras 3 years ago
I learned to doubel clutch today and once I understood the concept of how it work, and got the coordination down, it is actaully fun!! My dad owns 5 tow trucks and is teaching me so I can drive the trucks, so he is teaching me double clutching first, so I dont have to re-learn it later for my licence, ill do it right the first time!
animallover017 3 years ago
Great video. The trend over here is to automatics...This is proper truck [lorry] driving. All the old British lorries were 'constant mesh' or 'crash' boxes. Eaton
David Brown and Foden were just a few. Really enjoyed that! Young drivers today don't understand the art of matching road speed with engine revs..Happy days.
vinylseat 3 years ago
Not true. I'm 18 and i double clutch in my car while heel and toeing and going around corners. Young people can drive.
4ddavis2 3 years ago
No insult intended! I'm talking about young LORRYdrivers that have never encountered an Eaton, Fuller or Spicer box. They are trained using syncro lorries only. They fall apart when they first encounter a 'straight' box but of course soon learn the ropes when shown. Its very easy to double declutch a car because I presume the car you drive has a syncro transmission? Lorry gearboxes are completely different to passenger car vehicles. Thanks for your comment anyway. Cheers, J.
vinylseat 3 years ago
Yeah, This is how they are teaching me how to drive in school to pass my MVA test. They say when you get out of school you can float the gears.
MCaperoon 3 years ago
my dad just floats thru the gears he only uses the clutch to take off when he shifts he dont use the clutch they teach people to use the clutch and its bad
piston238 3 years ago
why is it bad to use the clutch?
varmint527 3 years ago
Because it wears the clutch out too fast, and replacing a clutch in one of these big trucks is VERY expen$ive!!! Clutching all the time will usually wear out a clutch in 300K-400K miles, where as floating the gears will let the clutch last MUCH longer. Well over 500K miles easily.
piratebobstreasure 3 years ago
Exactly Bob, Its difficult to explain this to guys that have never driven an older heavy lorry [truck!] With the Eaton twin splitter you only use the clutch when first moving off as you have explained. From that point you match road speed to engine speed and obtain very smooth changes. Constant use of the clutch would certainly wear it out putting 40 tons through the transmission. Official Eaton information states the clutch need not be used once the box is mastered.I back you on this one. J.
vinylseat 3 years ago
other way around kthxbai :D
Crazyrogue 3 years ago
Sorry but you're wrong. ;) This isn't a car or light truck, it's a whole different kind of gearbox, and a lot smaller span between gears with an engine that doesn't speed up or slow down as fast as a light duty equivalent. Floating save driver fatigue, linkage wear, clutch wear, and is not much different than double clutching. Double clutching just lets you break friction then slow the shaft, and all you need is slow the shaft. :)
lilbrudder32 3 years ago
Actually if you do it right you will cause no harm to your motor or transmission.
Razorbackfever 3 years ago
Thank you very much for posting this video. The company I'm going to work for requires double clutching on all shifts (up and down) and I was taught to single clutch on the downshifts. I was just lucky I passed the driving test to get the job and get to go out with a trainer. Again, thank you. It really helps a lot.
mountainman444 3 years ago
Glad I could help. Us older guys have to remember that we used to be "gear-jammers" too! We all had to learn somewhere.
piratebobstreasure 2 years ago
ok i got a question, so you press the clutch once shift and press the clutch again? is that just so the gear drops in smooth?
stnapruoyoop 3 years ago
no u press the clutch put it on neutral, rev the engine to the needed rpm, press the clutch and change the gear.
albinsabu2005 3 years ago 2
Basically, yes.
piratebobstreasure 2 years ago
im a trucker, when i shift its like a symphony... when i try to clutch its like a raghead playin the chello.. it all goes to hell.
gm2ner 3 years ago
I hear ya brother!
piratebobstreasure 2 years ago
There is no synchronizer in the big rig tranny so you have to do it manually. the first time the clutch is engaged he pulls it out of gear, lets up on the clutch lets rpms drop to match higher gear engages clutch & shifts into the higher gear. it takes practice to get it smooth.
kdraper2007 3 years ago
That was great Thank you. I am having trouble the other way, Down shifting, the extra rev in-between is killing me, I need to ace it to go to the next level in my class.
Any suggestions? Serious ones please no "just give it up" etc. I need to complete the class, so I can get a job and feed my family,
Thank you in advance,
Jp
crazzytrain666 3 years ago
damm you make it look easy
Salailua71 3 years ago
Thanks! I guess a quarter century in the saddle and over 4 million miles has given me plenty of practice! (Just recently got a 4 million mile safe driving award!)
piratebobstreasure 2 years ago
uh-oh, I remember when I got my first safe driving award. 15 minutes late,r in a 3-point u-turn in Anaheim, Ca, I tailswung a 53' into brand new car pushing it into a brand new truck. That taught me a bunch about safe-driving. When I returned to the yard I told the truck boss that I thought he should keep the award.
Never did see or feel the trailer crush that luxury car.
Twinhit 2 years ago
each time you press the clutch you shift or what?
JT0k3r80 3 years ago
Basically, I press once to pull out of one gear, and push again to go into the next gear.
piratebobstreasure 2 years ago
When driving one armed (left), on the straight big road, rest the steering arm's elbow on the door ledge and steer with wrist/fingers.
Why?
When hanging the elbow in midair, there is tendency to oversteer.
A life saver should you suddenly fall asleep & wake up from a short nap and 500 feet of travelled highway.
(It does happen to the best of line drivers.)
Doin' so, there is less movement of the wheel thus less inadvertant lateral steering due to ill attention.
Twinhit 3 years ago
And another thing...
When you grip the stick like you would a handful of dirt, your feel and force is of less precision and overpowered.
It's all in the wrist and palm, finger and fingertips. On certain shifts you can almost shift with just two fingers. Very light handed.
I remember a lot of drivers would grab that stick(s) and choke it(them) to death. Really that is what it looks like.
Twinhit 3 years ago 2
YES! Finally, someone that thinks like me. Some of my mates really trottle the gear shifter and smash the gears in - i always tell them - do it with feeling - gently - they should slip in themselves!
Some of them also rest their foot on the clutch pedal - they also don't believe me when i tell them not to cause it can press the clutch a bit causing slipage and therefore overheating and ending up with a worn clutch. Very important when towing heavy loads (150 to 200 tonne) - don't want slipage
DirtBikesAustralia 3 years ago
oh, PS:
Shifting by feel is best felt through the stick. Not the steering wheel. The stick is connected directly to the transmission which is connected to the engine.
The best way I can describe it is vibrational frequencies that match the speed of the engine. It's harder to explain than to demonstrate. Some get it, some don't.
Another thing about shifting is the musical nature of it from a percussionist's point of view. Double clutching is like counting time 1 & 2 - 3 & 4
Twinhit 3 years ago
Its a art.... really it is...
No use looking at the gauges and all that crap - needs to be done by hearing and feeling...
DirtBikesAustralia 3 years ago
True.
If one can hear, good, if not, feeling is about all one can go on.
Admittedly, not everyone can shift by feel.
It's an art form for sure that is very underappreciated.
You know, I might add that many truck drivers approach their job with the "I'm a truck driver, not a mechanic" attitude. Sooner or later they are going to need mechanical skill and wish they had learned mechanics. Fuel restriction comes to mind.
Twinhit 3 years ago 2
Gotta say, i agree with you there.
My brother who is a truck driver and owner of the contracting business is actually a qualified Diesel Mechanic and can do just about anything from pulling apart a RoadRanger, 20spd Spicer Box or overhauling a Cummins/ Cat engine.
I'm pretty good at the stuff also - but unfortunately never bothered to become a qualified mechanic. I just use my skills to do my own stuff and boy - am i glad i learnt it all - specially since i'm driving trucks - really helps!
DirtBikesAustralia 3 years ago
Good for you. But don't ever be surprised if you find yourself jobhopping and the new boss says mechanical inclination is not important.
If you are ever told that, you can then ask yourself what kind of racket you just signed up with and already be wondering how long you are going to put up with it.
One outfit I got a hitch with was employed by college kids. One of em told me if it wasn't for her sitting at the computer I wouldn't have a job. It's times like that you have to learn to laugh.
Twinhit 3 years ago
yeah... there goes another job opportunity out the window hey...
where abouts do you drive?
DirtBikesAustralia 3 years ago
I'm retired due to health issues.
I used to drive all over the US.
Speaking of jobs, one of the biggest reasons for the economy here going south is due in large part to the closure and mass exodus of manufacturing that had been the backbone of the US. It's not a recent event, but has been going on since post WW2. Education has gone south here with little or no emphasis on productive vocational training. Educators cite that future generations will not need such training. It's bad...
Twinhit 3 years ago
....and it is going to get worse, I'm afraid.
It's not a simple problem - there are at least three partys who are responsible:
1)The Democratic party, for their liberalism.
2)The Republican party, for their conservatism.
3)The people themselves who vote either of the two political parties without considering that each consider the Government as a political agenda playground, rather than a place of governance.
Unfortunately, foolishness of the past is here to haunt us all for awhile.
Twinhit 3 years ago
If I were to offer anyone advice, it would be to do a lot of soul searching.
Among trucking firms, I would think that a company that transports vital natural resources would be a wise company to consider if offered the opportunity. Especially if the company has been in business over 50+ years.
Once employed, I would go back to school and learn as much as I could: subjects and areas that relate to the business that would benefit me later in life should health require. Something IwishI'ddone.
Twinhit 3 years ago
I had and still do a nasty hearing loss. DOT required me to wear hearing aids.
IMHO, that's no different than turning all that noise up louder & as a consequence, my ears are worse now than when I had started. I can't hear trucks go by at 2-300 feet away.
I can hear the low frequencies of the trash truck as it accellerates from can to can, & those damnable boom bass stereo thumpin' but I cant hear the birds, or the kids in the other room. If you wear hearing aids turn em down. Use yer eyes!
Twinhit 3 years ago
Another thing, learn to drive without the tachometer - tachs do fail. Learn to shift by ear and or by feeling the engine's rpms.
Twinhit 3 years ago 5
i know this video is just a demonstration for shifting using the double clutching technique but a good rule of thumb if you are using your jake brake is when the jake shuts off by itself at about 800-900 rpm, just downshift then, and after a while you will know the timing and you wont need ur tach u jsut go by feel.
gsd2009 3 years ago
Actually, Loaded on a grade, I had found that I could grab an extra gear (up-shifting) by using the Jakes (JB). The once personal theory proved true that by decellerating the Engine rpm's quicker with the JB than without.
thus I could hold a higher gear because I was in the powerband- of course it didn't ALWAYS work because the grade may be a bit steeper than anticipated.
Bare in mind, the last time I drove was eight years a go. A 379 Pete double sleep. 435 Cat 13 spd. Dnt rembr RA ratio.
Twinhit 3 years ago
I use this trick myself!
piratebobstreasure 2 years ago
I think you oughta learn how shift without the clutch. Here's why:
One time, I had delivered a forklift to a Reno customer. The forklift was in the nose and crowded by skids. While breaking the frklft's tire blocks free with a mallet, I swung and slammed the hammer dead on my left ankle - did that ever hurt! I could barely walk with it, for the pain. I climbed into the cab to proceed on to california and the only time I could bear clutching was from a dead start. I'm glad I mastered clutchless.
Twinhit 3 years ago 2
I bet you said something like, "OH SH*T" when that hammer landed on you ankle! Makes my leg hurt just thinking about it!
piratebobstreasure 2 years ago
I honestly don't remember what I said, but I recall the pain was so intense I went into a state of shock for about a 1/2 hour during which I sat down on the edge of the dock with my legs hanging off the edge. Once I got myself together, it was grin and bear it for a few days.
Twinhit 2 years ago
What was worse was when I caught "epididymus", an infection of the testicle that feels like you been kicked in groin with all the effort one can muster. - that pain was nasty but I drove that C.O.E. for two weeks all over the US. bounce-a-bounce-a-pothole-here-a-pothole-there-bounce-a-bounce-a-everywhere. I was walkin' like an old bowlegged cowpoke from the previous century and yes, I was a team driver. - I couldn't tell which was worse - driving or sleeper berth time or walkin'.
Twinhit 2 years ago
lots and lots of fun..im sure your leg hurts after a long trip
stefanDMS 3 years ago
If your driving different models all the time,or doing alot of city work or say your driving off road in deep mud and very heavy.You gotta be quick there isnt any time for the 2nd clutch.But you gotta clutch yourself out of gear if you want the transmission to feel like new forever. The truth is you can either shift non syncro or you cant.
pwarren1010 3 years ago
you shouldn't have to clutch out of a gear or force it when not using the clutch because you have a short time frame in which it will just slide out of gear at the right rpm and then slide right back into another gear without even a click.
gsd2009 3 years ago
I can shift with or without.When your off road at the landfill its smoother clutching your self out of gear when your shifting.The speed bogs you down to fast for shifting without.My other point is clutching yourself out is smoother,easier and less wear on transmission.I like the tranny to feel like new.
pwarren1010 3 years ago
its all driver preference, when done right shifting without the clutch is smoother and my transmission have always felt good after a million miles on them, it all depends on how its shifted and if you know what your doing
gsd2009 3 years ago
That's what i was going to say. If you know what you are doing you dont need to use the clutch other than to take off. i drive a big truck as well quint axle dump truck and i very rarely use the clutch.
After 15 years of driving i have yet to loose a clutch,transmission or axle!
THEBEASTOFOLD 3 years ago
I see it's a Peterbilt (?) from the mat
Ikaruszaki 3 years ago
James is dead right there, if you keep this technique its so much kinder on the driveline!.
if you have ever seen inside or built a 13, 15, 18 Eaton or 20 speed spicer box you realise what the pain the dog clutches go through
bigredmonstatruck 3 years ago
Yes... many people don't understand why i bother to double clutch - but my brother-in-law and brother been doing the same thing as me (double-clutching) and none of us ever had gearbox or any driveline problems...
I like to have a truck fully manual with clutch - I'm not a big fan of these new 'Auto-Shift' gearboxes...
And yes... i've seen the insides of plenty of 13, 15 and 18 spead Eatons.... never seen the guts of a 20 speed spicer though!! must be quite something...
DirtBikesAustralia 3 years ago
Oh and thanks for the vids man... that MACK TITAN is wicked - i wouldn't mind one myself... and thats saying something i'm usually a Kenworth or Western Star guy.
My brother is going to buy one for himself (his first truck) so i cannot wait to have drive. I just can't get over the fact it's capable of carring 2'000 litres of fuel...
I will let you know what it's like... might finally make a video on it.
Check out my favourited videos - you might find some interesting clips there.
DBA
DirtBikesAustralia 3 years ago
I got a 18 speed, fully manual Road Ranger in my Kenoworth T908 and I double clutch all the time - it really helps to get into the right gear...
I usually tap the accelerator when i'm in neutral and the clutch is released before pressing the clutch and going into the next gear - it helps mesh the gears... and sounds wicked...
great vid...
James
DirtBikesAustralia 3 years ago 2
Thanks for taking the time to create and post this shifting video.
kurbski 3 years ago 2
You are welcome. Glad some folks are learning a thing or two from my efforts.
--Pirate Bob
piratebobstreasure 3 years ago
wat year is this truck an wat type it looks like it has a army clutch cuz its not up in the air. an damn does it sound good. and does it have a jake?
tankboy0 3 years ago
my clutch is just like that ive seen almost all petes have that clutch style mine is a 1990 378. and i just cant use double clutch.
inquietosllc 3 years ago
It is a 1994 Pete, with a Detroit in it. Yes, it does sound sweet!
piratebobstreasure 3 years ago
i have trouble finding a gear when i am forced to slow down suddenly and am coasting in neutral, what is the best way to find a random gear coasting?
BryanMei 3 years ago
Don't take it out of gear until you have too. Coasting with the clutch pressed in is better than coasting in neutral and not being able to get into any gear at all. If you are already in neutral and coasting, check your speed and try for which ever gear you normally drive at that speed in, and if you can't get it, try the next higher gear or two even until you get one. Sometimes the correct gear will be lower than the one you tried, but not usually. And keep you foot off the accelerator.
piratebobstreasure 3 years ago
thanks for the advice man, helped a lot.
BryanMei 3 years ago 2
look at your speed and add the two number together. example 35mph 3+5=8th gear. 25mph 2+5=7th gear. if you cant find it grind it. he he. also the pitch of grind noise listen to that to tell if your close.
ishotwapiti 3 years ago
i tried to double clutch and it would grind when i tried to enter the next gear
BryanMei 3 years ago
Thank you for the video. It helps a lot.
illwise 3 years ago 4
You're welcome, glad to help out. And thank you for the kind comments.
piratebobstreasure 3 years ago