ok, in june i bought an 84 GMC 3500 body and frame to put all the components from my chopped up 88 Chevy V30. When i was mounting up the tranny crossmember it did not line up in the same spot. It used different holes in the frame and those didn't even line up propperly. I ran without the front shaft in for a while and when i went to put it in the shaft was too long. Was there that much variance between frames between 84 and 88 to cause this? I looked at the motor mounts and there is only about 1/2 an inch of fore aft movement possible. Do i just get the shaft shortenned(don't want to since i think the old one was too short anyway) or is the something i can do to move the driveline back about 2-3 inches.