For those of you guys running 8.8's in a stock wheelbase jeep, how much gear oil do you put in your rear? I ask because in most of our cases we have a higher than average pinion angle. So I wasn't sure if the stock 8.8 spec would be enough fluid to lube the pinion well enough cause it being higher. Any opinions? How much do you guys run? And any preference on weigh/brand? And I also have a L/S, do you run the oil with friction modifier or add your own?
-1990 YJ, 2.5L, AX-15, lifted, locked, on 35's.
-1999 XJ, 4.0, AW4, lifted 4.5", JK Rubi take offs.