http://www.peterschmid.com/default.htm
This site has pictures of broken down MB transmissions, however to find actual part numbers may be a problem due to copyright infringement issues.
------------------
Mercedes-Benz Master Guild - 2 years
Shop Foreman - 20 + years - dealer.
Part owner - MBZ Transmission remanufacture
2000 SL500
1995 E320
1989 300SE