Rebuilding Damaged Ford 8 inch Rear End. Upgrading to Traction Lock and 3.55 Gears.

The 1966 Mustang rear end that I'm going to install in my 1950 Jeepster has something very wrong inside. I'm pretty sure it is rebuildable so while I'm at it, I will install a new traction locker and 3.55 gears.