rear end or trans problem??
I just bought a 1995 junker zj with 4.0 from a guy. With 230K miles. Known problems. Valve cover gasket needs to be replaced. Both pinion sells need replacing. And some cosmetic stuff. The one problem I can't figure out is.. when I go up a hill either the trans is slipping on something is going on in the rear end. Because it feels like something is slipping and catching and you'll feel a hesitation. Also when this happens the rpms will jump up 100-200 then fall back down. It also does it when hour crushing at about 55 and the rpms are around 1500-1750 but it won't do it if your going 60 or above. With that being said I am hearing a whine from the rear end. The faster I go the louder it gets and it seems like when I let off the pedal it goes away. Especially at highway speeds. Thanks for the help in advanced