I couldn't find the info., but check this site out. Very cool... it's only in German, but maybe one of our German TA friends here will help out.
Van., WA USA
PS Feel free to post any findings on front and rear sus. upgrades. I'm trying to figure out what the hell I want to do too. I'm soooooo interested in seeing about putting one of those 750R rear swing arm shaft drive units on a TA... now that would be sweet! Probably have to use the 750R trans. too.
~Michael (of The Land of Misfit Land Rovers)
Used to have an Africa Twin and Transalp
X-Files Gov't Issue Sprinter TurboDiesel
Washougal, WA USA