Ended up tearing down the t56 last night. Stupid simple transmission. Yet super strong. Looks really good inside, gonna upgrade a couple things to let it handle about 700 ft lbs. but hardly any wear. And I weighed it, comes it 12 pounds lighter than a A883
DB here is a pix of the adaptor piece I used on my T60 it fits perfect, not sure if you have sorted out drive shaft yet or not but this piece solves a lot of problems.