1985 w123 300TD has developed a sort of sway or wobble most notable at > 60 mph. It can be induced by getting on an off the throttle. However, it also feels unstable in windy conditions, drafting/passing trucks, and even lane changes in turns.

I won't list what I have done to this car in the past 1.5 years (drive-line and suspension related since that is probably what's pertinent here) since it's easier to list what I have not done.

If it's NOT listed here I have done it already:

• tranny mount
• rear trailing arm bushings
• differential (there is some drive line slack I think is pinion related, but I have done carrier bearing and flex discs)

Wagon does have SLS which is working fine and has been rebuilt (including new rams, spheres, rebuilt valve, bushings for top of strut/rams). Subframe mounts have been done and entire front end has been done (all bushings, struts, sway bar ends, bearings, control arm bushing, and on and on...).



All wheel bearings are done and end play is to spec. Tires inflated properly. No strange tire wear, car rides and performs fine at slower speed (at least the wobble/sway is not noticeable).



So aside from the three things I have listed above is there anything else I am missing? One more factor is the sway seemed to be more noticeable after replacing CV axle, spheres, hydraulic rams which was done all at once recently. Tough to say if symptoms did get worse after this or I am just paying closer attention.



Ok, tried to lay this problem out thoroughly but let me know if other info is missing.