I had forgotten about this thread. When I did not get any responses I figured that I was on my own.

My trailing arm bushings looked pretty good and it looked like the only way to replace them was to drop the rear suspension (which is a lot of work) so I did a little more investigating. I did not have a reading of rear wheel toe in before replacing the the subframe and differential mounts (because the 4 wheel alignment from the tire store really wasn't a 4 wheel alignment...you have to go to the dealer for that) so I am not sure what effect the new rear subframe mounts and differential mount had. To see, I put a floor jack under each side, raised the car a couple of inches, measured the toe of the wheels with a tape measure and discovered that the rear wheels toe in as the car is raised. My plan now is to remove the springs and install thicker pads and also to replace the rear shocks. I think that will solve my rear toe in problem.

The front end castor is only 2 degrees short so I am living with it. Every time I see a 126 in a parking lot I peek underneath to see if there are any threads left. 60% of the cars I have observed do not.

The car rides and handles like a new car now so the job was worth the effort!

__________________
Tom Hughes
St. Louis
84 300SD
92 300D
86 300SDL