http://mywebpages.comcast.net/snow7ice/BENZ.html

I have rebuilt a lot of engines, but no transmissions. I have no training either. But I am having trouble locating an 83 Manual trasnmission here in South Jersey.
I cant downshift from 4th to 3rd. I think I have a busted Synchro. My biggest problem I think would be
1) Documentation
2) Parts
3 Special tools

Anybody got any input?

How hard is to repair a 83 240D Manual Transmission?