How to install or change or replace gears and bearings in a rear end or differential

[quickteg1276]

Really good video. Thanks for taking the time to teach people the basics

[jmiles1960]

Great video! I have a bad bearing in my 73 Camaro different. Not sure I am up to rebuilding it myself. Excellent info here. Are you located anywhere near Maryland by chance?

[Oldsmob455]

@jmiles1960 I'm in Wisconsin. Glad you enjoyed the vid.

[TheCarmanguy]

Excellant video!! BTW what type tonnage press did you use and what is the minimum I need to press bearings into pinion shaft? Thanks!

[Oldsmob455]

@TheCarmanguy My press is a 20 ton. Not sure what the minimum would be but it really isn't a hard press so you shouldn't need much. Good luck.

[09daytona]

Hope I'm not being picky with this but if you enlarge the inside diameter of the pinion bearing wouldn't that promote deflection of the gear itself under load and give a false wear pattern on the ring? I realize the clearance might have been only +.001 but that would be +.0005 of movement.

Still a great video though. Makes me remember why I don't attempt stuff like this laying in my driveway and prefer to pay a shop :o)

[Oldsmob455]

@09daytona Re-watch the video. That was a "set up" bearing. A different bearing was pressed on for the final fit.

[09daytona]

@Oldsmob455 I am aware this is a setup bearing and that you exchange the setup for a unground permanent at final assembly. But the 2 bearing bores are different diameters and the 1st allows lateral movement due to the enlarged bore, resulting in a false wear pattern.

[Oldsmob455]

@09daytona The idea is to open up the checking bearing just barely enough to slip it on. It's certainly isn't a perfect or final pattern but it's close enough to give a idea where one needs to be. The final pattern of coarse needs to be checked with the bearing that's pressed on. I could have pressed the final bearing on and off all 4 or 5 times but that probably would have resulted in a trip to the bearing store. Bearing separators are not easy on roller cages and sometimes bend them.

[jsc9306]

Thanks for the video, I am learning this in class and a little extra knowledge always helps. :)

[CrikeyMang]

Damn you guys are legit and thorough in your work. Surprisingly enough the video that brought me here was the exact opposite haha. btw...can I borrow that Pinion depth checker? I promise to never give it back :P

[NFWRGA121]

Thanks. And by the way, great tutorial. I've done one differential and it was 25 years ago. I also liked the comic relief added in. John

[NFWRGA121]

Did you mic the new and old brgs to make sure they are the same? Also, are additives still added these days to limited slip differentials? Thanks , john

[Oldsmob455]

@NFWRGA121 Yes and yes. Made sure the bearings were the same and used a tube of Napa brand limited slip additive to the gear lube. Thanks for the comment.

[543ferris]

Thanks for the video, you gave me the courage to redo my 90 Volvo rear end with success. Very very helpful.

[Oldsmob455]

@543ferris Glad it worked out for you. Setting up gears sure can be a tricky deal.

[TCF2148]

Good video. It's what I need to know, but it doesn't really put it all in my lap. I'm puting an Eaton posi into my 12 bolt GM corporate truck axle soon and this video does help me to wrap myself around the job.

It looks like a good idea to:

1. Read the manuals and watch the videos (like this one)

2. Open it up and really know what you're starting with

3. Use the car as a mounting fixture so you don't chase it around the shop

4. Don't go cheap or take shortcuts

5. Be patient

[xxxtyronexxx]

if your carrier bearings are all good can you just put it all back in with the same bearings and the same spacers? then you just have to mess with the pinion spacers?

[Oldsmob455]

@xxxtyronexxx Sure, as long as your backlash is good after finding correct pinion depth.

[newmoneyentkashin]

Great great video.very helpful.im in the process of changing my read end for the second time in 2 days'thanks to the police'but now i just installed my old rear end but with new gears,my only problems the pinion nut was already taken off without any markings so now im lost at how much i should or shouldnt tighten is.plz help

[Oldsmob455]

@newmoneyentkashin Sounds like it's time for a new crush sleeve then rotation torque to spec. The spec is a little different for new and old bearings. Good luck.

[bobthedistroyer]

@newmoneyentkashin so what did the police do to your gears to make you change it

[1rought]

Great Video thanks

[devianb]

Very informative video. Now I see how everything works and fits together. My 7.65 10 bolt rear end started coming apart and had a shop rebuild it. Now I see why it so expensive. Definitely not something I could do at home in my driveway.

[Oldsmob455]

@devianb I meant for this video to be a inspiration on differential builds but it seems to be more of a deterrent. lol I guess it is what it is.

[millwrightman99]

Dude if you're going to use a 4 foot pipe wrench make sure the somabitch is Aluminum ..You gonna get a hernia ..

Ever seen a car with a spline shaft 2 feet out the side -- tire still on & fucker driving like nothing happening --- if you live long enough you see those clips breaking on the highway .Poor ass design from shit assed engineers .

[Oldsmob455]

@millwrightman99 The inventor of the c-clip should be shot. My Cutlass has a factory c-clip eliminator type rear end. Was doing a hole shot in the high school parking lot and I snapped a axle in two places, one of which was at the wheel flange. Friggen tire rolled back and bent the quarter panel and wheel well all to hell. I'll still take that rear end over the c-clip type. lol

[millwrightman99]

@Oldsmob455 I agree its a disaster design , It just amazes me the factories kept using that shit for years --and you wonder why jerk offs like Ralph Nader made a good living ,Damn manufacturers don't change shit unless a gun is pointed at their heads ..

Now they got some good cars but I need to sell my first born to buy one .

How they managed to get cars costing as much as houses boggles my mind

Haven't bought a new car in twenty five fuck'n years. and my next will be a used 2011 mustang

[subcomandante77]

when removing the yoke, another thing besides the torch if you dont have it, you can always use a pipe wrench to hold the yoke while you take off the nut, this is great when its a trail repair and theres no heat..

[1rought]

Great job with the video! best one i have seen yet on diff rebuild.

[spelunkerd]

I found this so helpful that I watched it twice. Thanks again for going through the effort to post this.

[cgrobe21]

Could be a possible world record with that 7/12 pitch you got going. Future Olympian!

[cgrobe21]

Good job. I have yet to get my hands on my rear deferential. I have a 63 impala with a deferential that looks similar to a ford 9". Wish I had a back plate. Have to drop the whole rear end. Nice work

[cgrobe21]

Discuss world record!!!!

[Oldsmob455]

@cgrobe21 I think I hold the world record for the ring gear toss!

[chevyon37s]

also nice entertainment while waiting on the cool down!

[chevyon37s]

heat makes loctite come off very easy!

[truheem]

Hey i inboxed you i have questions

[rbukacek]

I wish I would have seen this video before today. I put a Ford 8.8 axle in my Jeep YJ and lowered the gear ratio (higher numerically). My trial and error with setting the pinion pre load was a big ol' hassle! I'll be doing my front axle next and will definitely use your idea of using the old bearings to test fit. Thanks for the video!

[truaz1an]

i was gonna change my ring and pinion by myself, then i saw this video, din't know gonna be this complicated lol. i guess I'll just leave it to the pros. lol

[kief4diamonds]

wish you were near to let me pay you to do mine. its leaking off the torque arm bolt....i think maybe the seal that we replaced wasnt the right one since my TA is an 02....i think personally that the ultimate fix for a 10 bolt is a moser 9"'

[hosscaddy]

looks like you know your rear ends i got a question....

85 elcamino 7.5 rear end.. i have a series 2 and 3 lsd carriers i want to run 4:10 gears from an s10 pickup will i be able to use the series 3 lsd carrier?

[Oldsmob455]

@hosscaddy I'm not sure. Maybe you could call a tech line like jegs, summits or Richmond gears.

[jesusloc818]

what gear ratio are you running?

[Oldsmob455]

@jesusloc818 3.42

[heitchlerjessej]

Excellent job on the video and rear end.

[woolridgewilly]

did it turn out well?

[Oldsmob455]

@woolridgewilly Yeah, no howls or whines. Will make another in car vid eventually after I get rid of a few exhaust rattles.

[86Gbody]

that is a hard job!!! much respect for the patience it takes to mess with those gears!!

[funnyman1972]

How much you charge?

[Oldsmob455]

@funnyman1972 It's more of a pain than it's worth for me to do it. Thanks for watching.

[CamaroHelp]

very nice video!

[overth3under]

This Was really a good video!

i have 2 questions:

Do i need a new crush sleeve for every time i assemble and then disassemble to change shims on the pinion?

Can i do this whitout the pinion depth measure tool?

// Swedish Guy!

[Oldsmob455]

@overth3under Only stick the crush sleeve in there for final assembly. Preload your pinion bearings to proper torque though while checking tooth pattern, this draws the pinion all the way forward. The pinion depth tool is a joke, don't buy it. You can certainly do it with out the tool.

[overth3under]

@Oldsmob455

Ok !! Thank you!