Originally Posted by Warpman89
I have an 04 Rubicon w/ 4.0 and the rear main is leaking. Are their any oil treatments to add to stop the leak without replacing the seal?
When you say leaking, what do you mean???
The rear main on my '03 Rubicon was "leaking" since the day I bought it, finally got around to replacing it a few months back and 65k miles later.
It did not lead enough to drip...just kinda sorta seeped a little, but never left a mark on the drive way.
Is it in warranty? Well I have a 7/70k warranty on my Jeep and the dealer said it was not in warranty due to mods on the engine causing it to create too much HP [Avenger Supercharger] so they denied it. So did another dealer.
In fact 2 dealers have totally denied any drive-line work at all due to it being "heavily modified" with such mods as "custom rocker guards and custom fenders", yes those are quotes.
On the other hand you can replace the rear main seal yourself, here is my writeup:
Let us know what works out for you.