I just did the job on my 1990 300TE wagon this weekend and it makes a marked difference. For very little extra (~$30), replace the sway bar brackets (particularly in pre-89/90 300Es, but I'd do it on all) that hang down from the unibody and also the straps that hold the bushings in place. Also, make sure that you clean your swaybar thoroughly, spray it with lubricant, and the old bushings (particularly the mounting ones) will come off easily. Make sure that the new bushings are lubed on the inside, too, for installation and on-going use.

On the previous lister's question on the 123 chassis, your noise problem is likely brake support joints. Look at the rod that goes from the lower control arm to the body and you'll see them tucked in there. They are the most likely source for front end "clunking" on a 123.

Richard Easley
Waco, Texas