I've got an excel spreadsheet from a guy that's was with BW for years, and he sent the spreadsheet for T-5 specs, ie., part numbers, gear ratios and what they were used in. BTW a 92 S-10 T-5 is not a "World Class" tranny but the 93 is. Same size, same specs, same ratios, Go figure. I loaded the spreadsheet in the "General Tech Files" under "Non-Opel Technical" section of the download area, so if you have Excel you can download and view it. There is also a website I ran across that shows how to swap out the tail shaft from one style T-5 to another, I'll have to research it again and post the link to it here. Here's the link to the website to swap the tailshaft housing from one T-5 to another:
http://www.inliners.org/Jack/T5tech.html