Really screwed up big time on this one but I guess thats what's learing is about. Gave my 40 ford to a friend and we have been both working on it. I measured the drive shaft for cutting as we took 8 " off the truck bed. Got a new slip yoke and pushed it on the splines of the tranny output shaft and then pulled it back 1'2-3'4". Tried to hook up the drive shaft and found out that I was off (to short) by 1". The only way I can see to fix this screw up by me is to move the wheels forward but then there going to be offcenter from wheel wells. The old saying measure twice just to be sure is so correct. I only measure it once and now am paying for my mistake. Can't move my tranny back(350th) as the firewall was cut to have the motor set back as far as possible since were putting in a big 4 core radiator. Not much room in the engine bay.