Outer Limits 4x4 Board

After filling the body back a little so that the shifter travels completely into L(dickhead b4 melet it hit after the body lift), it still sometime poppes out of gear.Very scary going down a steep hill. It only seems to pop out when the pressure is released, such as going over a ridgback. There is a lot of freeplay in the drive train, especially the front diff, as I just replaced the rear one with a tight 1990 diff, has anyone come up with a solution

Bassyk, for the three inch light and 2 in the body, can you just fit the longer coils and shockers