Rear Differential leak?
Elder User
Joined: May 2007
Posts: 754
Likes: 1
From: Solon, Ohio
No, it's not normal, but not rare either.
Does it look like it's coming from a leaky pinion seal (where the driveshaft connects) or from the rear cover.
If it's just the rear cover it shouldn't be a big deal, but if it's coming from the pinion shaft seal it means at least the removal of the pinion nut and flange which requires some high torque work on reassembly.
There are some threads that you may be able to use as a how too, but I don't remember the key words needed for the search.
Does it look like it's coming from a leaky pinion seal (where the driveshaft connects) or from the rear cover.
If it's just the rear cover it shouldn't be a big deal, but if it's coming from the pinion shaft seal it means at least the removal of the pinion nut and flange which requires some high torque work on reassembly.
There are some threads that you may be able to use as a how too, but I don't remember the key words needed for the search.
Postmaster
Joined: Oct 2006
Posts: 4,816
Likes: 1
From: Davis & Newcastle, CA
If its ONLY on the diff cover then the last person that did the gear oil change didn't seal up the cover very well. If the leak isn't very much you can probably just wait until your next change and give it a real good bead with some RTV before you bolt her back on. Just make sure to keep an eye on the oil level in the diff, you don't want it getting too low or your gears are going to start heating up.
Elder User
Joined: Sep 2005
Posts: 841
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From: Orangeville, Ontario
I'm not sure if it would be the same for a '95, but I know that on my '90 it has a flat filter stock and the box wouldn't come close to fitting a filter that big.
Also; if it's just the diff cover I've had the same problem a couple times. And seeing as a shop did it before it was leaking I went back and had them re-do it. Only to have it seep again. I was worried about low fluid but I was there when they removed it to fix it and it was still very ok fluid wise. Now it's doing it again and I don't worry about it because it never leaves any puddles or anything and I don't drive it too much.
Also; if it's just the diff cover I've had the same problem a couple times. And seeing as a shop did it before it was leaking I went back and had them re-do it. Only to have it seep again. I was worried about low fluid but I was there when they removed it to fix it and it was still very ok fluid wise. Now it's doing it again and I don't worry about it because it never leaves any puddles or anything and I don't drive it too much.
Last edited by TheRoadVirus; Nov 1, 2007 at 09:18 AM.
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More Turbo
Joined: Jan 2007
Posts: 678
Likes: 1
mine leaves no puddles either. and I was the last to do the oil change on them and i liberaly used RTV lol.. im not toooo worried about it, just double checking a little, i know its fairly common for a read dif to seep
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Postmaster
Joined: Oct 2006
Posts: 4,816
Likes: 1
From: Davis & Newcastle, CA
Originally Posted by NeXtras
mine leaves no puddles either. and I was the last to do the oil change on them and i liberaly used RTV lol.. im not toooo worried about it, just double checking a little, i know its fairly common for a read dif to seep
Also, be sure that what you're seeing is actually seepage through the RTV. I know on my differential that it APPEARS wet from the stain of the fluid when it was drained by the shop that did my gears. Unless cleaned, this stain will continue to look like relatively fresh fluid for a long time.
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