Originally Posted by ekmike
i fine that it locks posi in the dirt and when i got it almost stuck in the mud both tires were rousting mud, sometime this week i need to change the oil in my rear end so i check what i have. Ok so i have been playing alitle bit with my superchip and its helping i find, but when i do my TB mod it might help to.
Before you change the fluid in the rear end, find out if you have a limited slip differential. If you have one, you need to use a friction modifier additive to your oil. Chilton's manual says it only needs 5oz. if I remember correctly. If you don't use the modifier you'll get a nasty chattering in the rear end.