sounds like you have pinion bearings on thier way out thus the leaking seal because the bearings arent holding it centered. i also have a roaring noise but unlike you my rearend roars all time. (not just on decel or accel) my diff guy says its probably the gears going bad. my pinion seal is not leaking and at 108k miles and original seals i would say he is probably right. if i re-gear i am going with an HP d30 front axle a 1993-94 front ds and match the 3.73:1 gears. among other wants to upgrade hummmmm....
WHY DO YOU NEED TO KNOW WHERE YOU ARE GOING?
Last edited by Heap-O-Jeep; 04-13-2009 at 08:20 PM..