There is a good article on this web site under Tech Tips on the T-5 and installing one behind a 235.
If you go to the Inliners web site,
www.inliners.org there is a detailed article on the T-5. Click on Tech Tips.
There are several individuals that have features on their personal sites about their experiences installing a T-5. One of them is: home.twcny.rr.com/schickling/1940Chevy/index.html
You can also do a "Google" search on "T-5" and get some other information about this popular transmission.
