Re: Rear Main Oil Seal
 

Edward R. Wojciechowski JR proclaimed:

> I have a ’96 GC 4.0 with 170k and it looks like the seal is starting to
> leak. I was wondering if there was a good web site to go to for
> instructions on replacing this before it’s to late. Thanks in advance……
>
Before you do this, check along the back of the block. The most common
cause of this leak is the valve cover, the oil runs down the back of the
block and looks pretty much exactly like a rear seal. The seals DO go
bad, but more often it is the cover.

Google for Jeep 4.0 rear main seal replace and pick the site with the
best pictures.