Great work! I will be following this project.
Hopefully, if a still have a job in the next few years, I will be putting a 6R80 in my 72 F250.
For now it’s motor first, then trans.
But the thought occurred to me a while back that just popping in a 6R80 behind the lackluster 360 that’s in it now would completely transform how the truck drives. That low first gear would really wake it up.