Thanks for the inputs. I don't feel that I'm qualified to tear into this tranny. If anything, I'll just look for a good used one. After looking at the link that xvvvz sent, I know that it's over my head. For now I have the bowden cable disconnected so I have really quick upshifts. I just shift manually when necessary. It's too cold to do much of anything right now. I still think the car is worth the 100 bucks I paid for it. I got it to fill a void while I'm working on my 420sel. Doing an engine swap on that one. I guess I have a soft spot for these old Benzes. Or maybe a sick obsession.
Thanks again and I'll post whatever I decide to do with this one.