Postby KEVSTER » Sat May 22, 2010 3:19 pm
YES YOU CAN USE THE 75W-90 WT OIL in front and rear diffs, rear is synthetic so using that in front would be a plus, the auto trans needs the J-matic NO EXCEPTIONS.. Dealer sells it, as for the transfer case you can use the J matic, but I believe Mopar, Valvoline plus 4 would be fine because it is synthetic automatic trans fluid. The rear axle takes 1 1/2 qts, front diff uses almost 1 qt.