Rear diff question
I'm sorry if this is an old question. I have been going over the entire WJ, and all fluids look really good EXCEPT the rear end. It was darker than the front diff (noticeably) so I want to swap it out. Any tips on the process (special tricks or steps) or suggestion of what fluid to put in would be appreciated. Also, is that little rubber stopper something that seems to be problematic about seeping (leaking)? Just curious if it's something to replace and keep the old one for spare.
2000 Grand Cherokee Limited/ Quadra Drive / 4.0L/ OME HD springs, Bilsteins, JKS trackbar, 255/75/17 BFG M/T with JK Moabs
2005 Silverado 2500 HD Duramax
United States Army (2004-present)