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Old 09-25-2012, 11:06 PM   #1
Join Date: Sep 2012
Posts: 5
Rear Differential Leak

Have a recently purchased '04 TJ. There is a small, slow leak that appears to be from the seam where the back plate (unsure of term) attaches on the differential. Also, there looks like some type of red rubbery substance protruding slightly around the edge of the seam like the previous owner was trying to get a better seal. Should I do anything? Am I screwed? Any advice would be greatly appreciated. Thanks.

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Old 09-25-2012, 11:13 PM   #2
chrys95's Avatar
Join Date: Jan 2011
Location: Phoenix, AZ
Posts: 55
You're not screwed. Just unbolt the cover scrape off all that red stuff with a razor blade, get some black rtv and seal it back up! It's a pretty easy job, maybe look for a step by step on YouTube if you're not familiar. I just did this on my jeep, took about a half hour.

Here is a video I found on YouTube, it's for a pinion replacement but he also re-seals the differential cover too. The video is a front differential, but the process is the same. Good luck!

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Old 09-26-2012, 01:04 AM   #3
D2K47's Avatar
Join Date: Mar 2012
Location: Traverse City
Posts: 201
Did this in the summer, while your at it scrape off the differential cover face plate rust or paint and retouch it with black or whatever color you choose for a sharp look
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Old 09-26-2012, 06:40 AM   #4
Neil F.'s Avatar
Join Date: Nov 2007
Location: Marlton, NJ
Posts: 6,072
Images: 1
The normal way to seal the differential cover is RTV.
2003 TJ, 33" BFG AT, 2" BL, 2" BDS spring lift, Truck Lite headlights, Homemade sunrider top.
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Old 09-26-2012, 11:11 PM   #5
Join Date: Sep 2012
Posts: 5
Thanks, everyone. Fortunately, does not look too difficult. The you-tube videos make it very clear what to do. Thanks again!
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