Gilly, on my particular model the speedometer uses a potentiometer to measure the magnetic pickup on the transmission according to M/B dealer and Phil. My question is where to start 'home diagnosis' of the problem piece. I appreciate your help these last few days. I am sure glad you and others are there to help us. I have the car back onto the jackstands. I think I'll loosen the pickup, wiggle it a little (maybe even malletize it some...just kidding )

If you have any other suggestions, I am all ears...uh..eyes.
Thanks.