The shaft the main gear is on, those holes on the case were machined too big. So the gear itself floated up and down. There is shims for front to back play. That’s the easy fix.
After the back and forth of NOS parts, reproduction parts I just got the T84 back from Tehachapi Transmission. I had them rebuild it after discovering some machining issues that I didn’t feel comfortable dealing with. The guy has previously rebuilt my 57 Wagon and CJ2A project transmissions. I...