The mechanics interviewed are completely correct. The cause is a WORN OUT Track bar. These people complaining are not maintaining their vehicle, if your car/ truck is shaking, get it fixed. Moog has a replacement trackbar that is physicially thicker in size and has a larger joint at the frame connecting end. I've replaced so many I can quote the moog part number off the top of my head without looking it up, DS 1235 fits 91 to at least 2004.
Having said that, one would wonder why after all these years hasn't Chrysler enhanced their trackbar design? Aftermarket has over 20 years ago.
[This message has been edited by jelly2m8 (edited 02-25-2012).]