rear main seal

[Old man with MJ]

Told It has a groove in crankshaft; read somewhere about a double lip seal (maybe Mopar) and or a stainless steel crankshaft sleeve? Has anyone used either of these to fix a leaking rear main seal? This is an 88 4.oL

Thanks

[ScottJeep]

The grooving sounds like an issue that is usually experienced on the FRONT of the motor caused by the seal on the front cover. 

 

Have never had to use the kit, some of which include the sleeve. 

[nitroxsteve]

Did the person who told you this actually see the groove or are they making a prediction?

[Jeep Driver]

http://www.silver-seal.com/category/shop.engine_parts.repair_sleeves/

[Eagle]

I never heard of a sleeve for the rear main seal. I'd say it's impossible -- how could you installit, even if you took the crank out of the block?

 

I believe the double-lip seal is a Felpro product, and available from NAPA.

[Old man with MJ]

Mechanic was replacing slave,had the transmission out, I may have asked him to look at leak in back of engine while he had it apart. He doesn't seem to be thorough in his work, this year I noticed some lines missing on the passenger side of the  bellhousing,may be for vacuum lines axle disconnect doesn't work.

Thanks for the replies, first I need to replace the valve cover gasket and clean the engine then I can tell where oil is leaking,only that can wait until spring!

The double-lip seal will probaly work for me,getting the oil pan off would be my first problem!