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Go Back JeepForum.com > Models > Jeep Grand Cherokee & Commander Forums > WJ Grand Cherokee Forum > Rear diff wet

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Unread 08-23-2013, 07:19 PM   #1
Brandonsdad02
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2000 WJ 
 
Join Date: Dec 2011
Location: Indianola, IA
Posts: 430
Rear diff wet

I just got back from a trip picking up the kids for the weekend tonight. I was getting ready to leave again when I noticed a wet spot under my jeep towards the rear diff. I crawled under there and the whole diff cover was wet. I looked it over and I don't think it's a seal because the whole cover is wet. The rubber fill plug is still in. My only other guess is the vent tube has come off. I have a 2000 wj limited V8 bone stock. I very rarely take it wheeling if you call going down level B roads wheeling. Any other guesses what it could be. It's getting dark so I can't check to iChat.

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Unread 08-23-2013, 07:32 PM   #2
cykaaro
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2000 WJ 
 
Join Date: Apr 2012
Location: orangville, ON
Posts: 2,804
Check and see if the pinion seal is leaking. I've also seen where a rear main seal leaks and ends up on the differential (my xj did this). If it's not the pinion, I'd clean it off and keep an eye to pinpoint where it's coming from. Good idea checking the vent tube, just to be sure, but have never seen one come off before.
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Unread 08-23-2013, 11:18 PM   #3
Brandonsdad02
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2000 WJ 
 
Join Date: Dec 2011
Location: Indianola, IA
Posts: 430
I was able to look at it tonight and the only possible place looks to be the rubber fill plug. The front of the diff is dry. Can't see anything leaking down from the top and the seals look fine. I notice a lot of rust flaking off the actual diff cover tho.
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