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Old 02-21-2008, 07:52 AM
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Leaking Rear Axle...

I currently have 36,157 mi on my jeep and their is a leak where the yoke pinion goes into the axle housing in the rear. Is this a common problem? I just bought this jeep and it is stock. If this is going out, is there anything else I should be aware of?

Thanks in advance.
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Old 02-21-2008, 08:29 AM   #2
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I've had a pinion seal leak (slight) since I bought my Jeep. It will cause problems if you let your diff run dry. Other than that just make sure you check your fluids more than regularly until you get it fixed.

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Old 02-21-2008, 08:40 AM   #3
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When you do get it done it's not just a matter of disconnecting the drive shaft, removing the yoke and pulling and putting in a new seal and then bolting the yoke back up, the backlash will have to be checked and setup correctly.
I just went thru this on my ZJ's D35, ended up with having to get new gears, it was noisy when we bought it in October but the PO said it had been making that noise for a 'couple of years now'....right after he had the rear seal replaced. When I heard it I know that the back end was toast and had lined up a D44A for it but it got too bad a couple of weeks ago and I had to have the work done. The upside was I had a locker installed while it was being rebuilt.
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Old 02-21-2008, 09:04 AM   #4

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Check your fluid level of course. Then if you don't have the funds to fix it right now.. Get some gasket sealer and put it around the outer edge of seal, after you clean the area.. This will help for a short time with the leaking...not a solution but may help until you can address it correctly.
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Old 02-21-2008, 08:43 PM
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Oh, I'm good to go. I purchased the jeep just under a month ago and I bought the 100,000 mi warranty. Smooth sailing on the funds to get it fixed, I make pretty good money.

I just wanted to see if this was a common problem with jeeps and what you guys knew about replacing it. If it was going to be easy I'd just fix her up, but after looking this procedure up I decided that it's not something that an enthusiast mechanic can accomplish in a gravel driveway and no cover in Seattle. From what I saw I'd have to pull the ring and pinion assembly out. I did that in my 8.8" rear end in my F-150 right after I lifted it and I had to lay it all out the way it came out and took pictures to make sure I got it back in correctly. But that was back when I was a cook at a pizza time. Things are better now.

Thanks for the input guys. How many of you have had this happen? Is this a sign that the jeep was abused by the previous owner?
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Old 02-22-2008, 01:01 AM   #6
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IU've owned my TJ for almost 2 months now. It has 77,600 miles on it. I noticed a leak in my driveway the day after I went wheeling through rocks and snow. The jeep dealer told me the ring and pinion seal needed to be replaced. It cost $180. I replaced it and have not had a leak since.

I was also told that my axles are seaping by the wheels and that I should get it fixed soon for $780. Seems a little expensive though. I haven't fixed that one yet. I'll just have 4west do it when I get my lift. I think I'm going to go with the 3" Full TRaction.

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