I have a 1987 mercedes 300D turbo with some rear supension issues. When I drive a freeway speeds, the rear end seems to drift a bit. I changed the lower arms and I installed news shocks, and it helped a bit, but it still drifts. The control arm links seem to be in very good shape compared to my friend's 300D, and the anti swaybar bushings appear good too. Has anyone experienced the same problem?

 

I know its been a while since you posted, but I have the same problem. I did have a bad lower knuckle and had it along with the hub and bearing replaced. However, the sway at interstate speeds is still there. I was going to replace the shocks and sway arms. Did you ever figure out what was causing your sway?