pinion noise

[aaronkjose]

@mhollandmhs09 Solutions is listed below several times unde aakjose and aaronkjose. Getting tired of typing it. LSD clutches.

[mhollandmhs09]

Did you ever figure out what caused this? I have the EXACT same problem on my '06 rubicon unlimited. Thanks!

[trulymeparker]

@TheHasselBoff yeah its your cv joints are stuffed

[spelunkerd]

@trulymeparker This is the rear of the vehicle, there are no CV joints there.

[trulymeparker]

@TheHassleBoff its your cv joint is stuffed

[hockeynasty72]

if you have a lunchbox locker, they make that noise.

[TommyChevyBugle]

calipers rubbing bro

[Alucarde2565]

Mine did the same thing! What was it?

[Hittman1422]

gears rubbing against housing? too much lash?

[aaronkjose]

I got a regear, the old gears were not chipped, burred, or messed up in any way. The drivetrain guy who did the regear said it was the clutches in the Limited Slip making the noise. I have never heard clutches making that noise before. I always used gear oil with a friction modifier, so I dont know why they would have went out. All is good now with a Detroit True-Trac.

[rmoebuis]

I know this is old, but it sounds like the exact sound I started getting yesterday. So what was your final diagnosis? Gears? Bearings?

[rmoebuis]

Nevermind,.. I just read the other comments. Thanks

[IAMDAVEAMI]

oi

i have a jeep and it did that in igh speeds then it got louder then it blew up hahaha i dont know what it was but its the gears inside you should change it before it blows up like mine haha now i think i have to replace the whole inside i think booo i hate jeeps

what was yours...

the end

:P

[lilaznmage15]

Yeah, I would guess it's one of the teeth on the gears inside the differential...

[risendudelm]

the teeth on the ring are screwed up causing them to miss and re engage thats why they knock on and off.

[brother776]

that sounds like your pinion bearings ?

[russwelday]

Your're a genius. Have you ever heard of a stethoscope? And you should be doing it on a drive-on rack jacked up with the motor running in gear.

[chebbytruck]

have you checked your spider gears? '

[ariira20]

i have a Jeep Srt8 and it does make this sound....so annoying..and from outside pedestrian could hear it..so loud

[coolio2281]

i'd have to go with a chipped or broken tooth on the ring gear, ring gear has 3 sides, a coast and reverse and forward angle, you probably busted one and its catching on that tooth, but idk

[m4nikm4ti]

ball bearing?

[brewersam2000]

It's probably a chipped tooth on the ring gear. it would only happen when its going forward cuz it just shaved off one side of the gear.

[aaakjose]

@brewersam2000 See my post below. Gears were all fine. It was the clutches. it did it in reverse as well.

[TheHasselBoff]

my car does this when you turn it, the steering rack is fairly new, 3 years or so but it sounds like a bunch of spanners in a tumble dryer whenever you turn right, advice anyone?

[littletootpilot]

i can tell you this it has a bur on the drive side of the pinion that is causing this nosie. only 14 yrs of building and mating gears for gm.a little grinding on that bur will cure that.

[rthom86]

Just Empty Every Pocket

[aaakjose]

I think that may just be play in the drivetrain. I get that from time to time if you let off quickly. If your pinion angle is a little off from your driveshaft, and you accelerate, there is a slight binding on the yoke and driveshaft, when you left off it is relieved of that pressure and goes to an "at rest" stage. that's how im seeing it. At least with my rig, nothing my pinion angle is off a bit since my last suspension upgrade.

[harvesterofsorrow899]

the pinion in my 8.8 made the same noise

pulled it apart and 2 teeth off the pinion gear were sittin in the bottom of the diff.

spider gears were a little chewed up too though

[PhOeNiXpIoLe]

did you pull out both CVs one of them may be broken

[booksix]

Did you figure the problem out? I'm having the exact problem and I'm trying to figure out where to start... thanks

[aakjose]

No i haven't. I am getting new gears and an detroit truetrac in a few weeks so i will inspect the old gears and housing.

I pulled out of my driveway one morning and heard a loud pop and then it started doing it. There are metal shavings, very few, in the fluid every time i change the fluid. The only thing i have done is change the pinion seal a few times so. I tightened down the nut on the yoke according to jeeps fsm

[aaakjose]

Got my gears replaced. The tech said all the gears (front and rear) were fine.  The noise, he said, was coming from the clutches in the LSD. I have never heard them make the noise this thing does. Usually they just chatter, not knock.

[CrazyJeepWheelin]

if you dont have a locker in it now its just your spider gears binding and they will make a clicking nosie well drivin i had the same problem just dont let it go to long cause it will f@ck up your axle spline

[mattpitch]

@aakjose so what turned out to be the problem my truck is doing that exact same thing