My buddy who is a MB mechanic replaced the electric plate in my tranny and i was ready to go. I believe the actual problem is the input/output speed sensor that go on the plate but you can't just buy this you have to buy the whole plate I got mine at cost for $300. I had posted that the car was still stuck in limp home mode after replacing the electric plate, but I borught the car into the local Chrysler dealer and they hooked it up to their Star machine and removed the codes and everything was fine, I don't think the cheap OBD scanner I had was able to remove that code.

I had it fixed not long after the original post and I haven't had any problems since.