After the new rear-end was installed, my dad took it out for a test drive. The suspension is much better now, it rides more flat around corners, but the rear-end still will only spin the one wheel. The next thing to do is to put a Detroit locker in there to keeps thing equal. I don't know what will be done. I think things will wait until the transmission is installed along with the drive shaft.

Keep posted and we will see how this turns out.