Only suggestion I have is replace the seal in the differential while you have the final off. It is available from NAPA, and though it is a LOT thinner than the old ones, it IS the correct replacement. Does the "new" final have new seals as well? If not, now is the time to replace those, too. This week I completed my rebuild and installation of a "new" final on my '55 which had a repaired final on it. I had one bolt hole that I helicoiled while apart, and "chased" all the other holes to meke installation easier.
Good luck and have fun July 4th!!
Oh...don't forget to block the front axle when you jack up the rear to remove the final. I was able to do the swap by myself, but used an engine hoist to lift the final while I lined things up...'bout my favorite tool, since I don't have as much strength as you guys!
Last edited by Dale Finch on Wed Apr 03, 2013 8:17 pm, edited 1 time in total.