Has anyone had to lengthen their drive shaft, I just put the new rear end in and under full load with the jack stands under the 8 3/4 rear end I can push the drive shaft all the way in until it bottoms out in the trans and then I can pull it back about 1 1/2 inches until it rest in the yoke of the rear end. Besides that I'm pretty sure I have to get the bigger u-joint in the rear it is way too small.
Bob