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Leaking Rear Main Seals??

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Old 12-04-2008, 12:14 AM
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Year: 1998
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Default Leaking Rear Main Seals??

Ok, how much work is it to replace a rear main seal on a 98 4.0 with an auto?

Please tell me they are one piece and you can just slip the tranny back to install....Please! It is weeping now, not yet a real leak.

Also, does a 4" lift require SYE and a driveline change
Old 12-04-2008, 12:16 AM
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Two piece seal. Just drop oilpan and rear bearing cap.

Use a one piece pan gasket and dual lip rear main seal.
Old 12-04-2008, 08:04 AM
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As far as your lift question, probably will need the SYE kit. You have a 98 and the 97's and newer are more prone to driveline vibs due to the t-case changes in those years. Good Luck!!
Old 12-04-2008, 08:08 AM
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Use the SEARCH feature. It's been covered...very recently.
Old 12-04-2008, 10:11 AM
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my rear main seal was leaking a while back, but seems to have fixed itself. i have heard it's quite a common thing to happen on these 4.0 motors. also, ive seen people fix it and then it will still leak. a shop will probly charge you quite a bit for labor on account of them having to drop your oil pan and what not.
Old 12-04-2008, 10:33 AM
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Here is a recent thread that may help. https://www.cherokeeforum.com/f2/rear-main-seal-replacement-4426/
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