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Old 11-06-2012, 01:12 AM
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Bearing issues..

I've replace 3 of the 4 wheel bearings (almost certain each was bad), and it's still (the annoying squeak) there. I've replace both of the rear bearings (didn't feel like I was wasting money cause the seals were gone on both), and the drivers side hub. Well, I figured I might as well replace the half shaft's in the front while I'm in there since the boots are worn and cracked. I took the drivers side out, and the spline was caked in grease, sludge and rust. It scared me, since I just changed the front diff fluid this summer and didn't notice any issues. I'm now thinking that since I'm in there, I might as well replace the seals and bearings in the diff. I'm an engineer, and I'm very handy, but I haven't torn apart a diff yet. I've done some searches on here, and youtube to see if there are any decent how to videos, but haven't found anything yet. Does anyone here have any tips?
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Old 11-06-2012, 06:54 AM
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Re: Bearing issues..

Do you have the idea that diff fluid is leaking past the seals? The seals are inside the diff housing, so the fluid will not enter the axle tubes. As long as there is no fluid coming from the axle tubes, i wouldn´t do anything with the seals.
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Old 11-06-2012, 08:18 AM
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Re: Bearing issues..

I remember a friend having a problem with a squeak his XJ and we finally narrowed it down to the CV on the rear drive shaft. The ball on the inside was worn .

We rebuilt the CV and squeak went away

You should be able to test this by
Placing the jeep in 4wd
remove the rear drive shaft ( make sure to place a rag or something in the end of the transfer case , This way the fluid doesn't come out )
Then take it for a spin to see if the squeak is gone .

remember you will not be able to turn as tightly on dry pavement with just using the front wheels


Oh this is also good to know if you are on the trail and break a drive shaft
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Old 11-07-2012, 10:49 PM
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Re: Bearing issues..

My jeep is full time 4x...
Anywho, I've decided that I'm going to rebuild each diff with new bearings and seals. As for the squeak... well, I did finally figure it out, but it's a tad embarassing. I replaced the drivers side front caliper, and installed new pads (not the cheapo pads again) since the 1 year old pads fell off the backing plate. Then when I went to the passenger side to replace those pads (did the caliper last year) the inside pad had done the same thing! I guess you get what you pay for with pads... $22 vs $40 (won't make that mistake again!). Anyway, the squeaking sound has now gone away.
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Old 11-08-2012, 05:26 PM
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Re: Bearing issues..

It seems that you need a spreader to spread the diff housing a bit to be able to remove the diff from the housing. I dont know if its possible to do without. I can send you the manual pages when im home,if you want.
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