For 6-Speed Transmissionparts you can ask the Member
"Koal Clemens"
he is selling V8 parts, maybee he has some on stock.

But i have in mind he is not often here.
Take a look in "Ersatzteile und Autos" there yo can find his Mobile Number.

Gude Mario Audi 100 CD Autom. Bj.83 Audi 200 20v Bj.89 Audi 5000 Bj.85 Audi V8 3,6 Autom. Bj.88