I just googled BW-T5 and found about 60,000 hits. I made it through a couple of pages, or just enough to figure out that

1) Your answer is probably out there and
2) There are a whole lot of varieties of the T5. Some Ford, some Chevy, some mechanical speedo drive, some electronic, etc. I did spot one reference which said that some of them had a fixed bellhousing.

Good luck. Sorry, your answer evidently requires a higher pay grade than mine.

Jim Paget
88 YJ with a few changes

www.rrr4x4.com