Well I have an 1985 500SEL That seems to do the same thing yours is doing except it is in the front end I think, my car vibrates so bad the star on the hood wiggles, hood vibrates. and again i have had tires balanced and rotated, new ones put on to see if out of round was a problem. rims seem to be not bent. I have done the new drive shaft, and new rear axles, Thinking this problem was in the rear..my car seems to be fine at speeds under 70 then at 75 it feels like its coming apart at the seems. I hope someone has a idea where to look..


Thanks

Rob..