In this video I take a world class T5 that came out of a 91 V8 mustang and put it in my 1966 Ford mustang with a stright 6 200. The old transmission was a 3 speed. I am not an expert. THis video is just to maybe help you understand better the swap.
I watched this video first to see if i could do this
https://www.youtube.com/watch?v=oKda3H83Fk0&list=PLGYcJIb3XS2srTC8uKovZ4ORIaYhZqDEq&index=21
Removing Pilot bearing with bread
https://www.youtube.com/watch?v=00OlG5E8vLk&t=1s
I watched this video to see how to take apart my housing to inspect my new T5
https://www.youtube.com/watch?v=Dst89HqW8ow