Trans repair shop....

What he said.

I’m working on a how to, start to finish, that I’ll post when I’m complete.

The manual has you jumping all around it when doing this job from section to section.
 
I've been a professional mechanic since 1979....I can work on European autos, the Triumph should not be too difficult, I "reworked" my SV1K to 179 hp and my GS1100ESd to who really knows??? Lol
I may pull it all the way down and have a peek. Thanks....