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Old 08-31-2009, 07:23 AM   #1 (permalink)
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Rubicon rear main

Looking for a little help. I have a 2004 Rubicon that has had a rear main seal leak for a while. I have replaced it twice now, once with a Felpro and once with Mopar unit. I have oiled it , soaped it and used rvt and still a leak. Any pointers would be greatly welcome, cause this is about to drive me nuts. And by the way the crank looks good, and it was installed right both times and torked to 80 FTlbs both times. Thanks for all the help.
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Old 08-31-2009, 08:51 AM   #2 (permalink)
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ran into the same problem a while ago with my cherokee. done plenty of rear mains seals on other jeeps before with no problem. went to do mine, and it went smoothly. fired it up to go drive it, and it was leaking like a sieve. pulled it apart, and redid it with a new seal, same deal.

3rd time i used bearing grease instead of soap and its been great. not sure if the grease changed anything but thats what worked for me
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Old 08-31-2009, 12:50 PM   #3 (permalink)
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I used a sealant called "The Right Stuff" instead of RTV. Better oil tolerance, better temp resistance, pretty much better then RTV all around. It comes in a can and shoots out like Easy Cheese, avail at pretty much any parts store.

The sealant doesn't go on the seal ends, it goes next to them where the bearing cap hits the corner of the block. I don't have access to my FSM, or I'd post the pic for ya.
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Old 09-01-2009, 05:30 AM   #4 (permalink)
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Hey Thanks a lot, I will try both of your ideas.
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