Great question. I am at that point on my rebuild, putting the rear leaves back on. My 3600 pins are not centered on leaves and I have also considered reversing them to move axle back alittle. I wondered if my stock driveshaft would be to short to do that.

I'm slow, but consistent........consistently slow!

Loy, 1950 Chevy 3600 3/4-Ton

http://s522.photobucket.com/user/Shellology/library/1950%20Chevy%20Truck?sort=3&page=1