I just stripped a 90 gmc 3500 4x4 reg cab long bed 454 pick up and it had t400, 373 gears with factory locker and full floater rear end. I have a 93 1500 4x4 350 5 speed with 342 gears extended cab short bed and want to put the 373 front and rear end in my half ton. My questions are
1… what do...