The trans is 49 years old. What are the chances that tail housing has been swapped? Many guys swaps parts for whatever reason.
Some mechanics install studs to help line things up. Much easier to put studs in the holes, than get the holes lined up for bolts. It is why Chrysler went to wheel studs in the late 50’s.
What is the cast in date on that Tail Housing?
What is the cast in date on the main case? What is the stamped in date on the main case? Is the stamped date before or after the cast date?
