When I installed my T-5 the instructions I had at the time were to cut 1/4" off the end of the pilot on the transmission input shaft because they were too long and would/could bottom out on the crank if you didn't. I don't know if John has changed anything with his adapters since then so you wouldn't have to do this, but I did. Also, I tried to use a bearing instead of a bushing, but when you are trying to line-up the tranny (even using a clutch alignment tool) I couldn't get the pilot on the input shaft to go into that bearing. It's supposed to be a tight fit, but without beating on the tranny housing it just wouldn't go so I used a new bushing and life was good again. John modified my original 56 release fork by welding on two 3/16" pieces of round stock where the fork rides on the bearing. I can't remember if this was a newer style bearing or not, of if I had a truck clutch fork if that makes any difference.
Just my experience with the installation. I love the set-up.
Rono