Transmission install..

Hahaha, yea it's tough work on your back in the garage. Before doing any of these projects, even if you're experienced, do a lot of research. Service Manuals are the best, so you can see every part and the procedure. And don't forget Youtube, but you have to pick the right video. FABO is good help too.
Not long after I bought this car, I searched for a manual and ended up finding an original matching set of 1972 service and body manuals. They were from a high school library and still have the check out cards attached..Kinda cool seeing the names and dates checked out back in the early / mid 70's..