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The fact is there are several reasons these trucks have death wobble... worn front end parts from trac bars to tie rod ends to brake rotors and a lot of time it is a combination of two or more factors and fixing any one can stop it for a while even if it is not the only participating part. After working on a bunch of them you can start to get an idea the difference in the various wobbles... warped rotors feel different than worn trac bars, a worn trac bar can start wobbling from a pot hole OR hitting the brakes, sometime swapping bars can fix it enough to not worry about the rotors, sometimes fixing the rotors can stop it even if the trac bar is bad. Usually if the trac bar is bad and the rotors are bad you can induce it from hitting the brakes but it probably will not stop just letting off the brakes, if you swap the trac bar in this case it may fix most of the problem but warrped rotors need to be fixed to get rid of it all, of course since it is way better the customer may let it slide that it shakes a little when you hit the brakes but that little shaking may cause the trac bar to go out early then you look stupid, of course if you fix the rotors it may quit for a while but come back soon, then you get blamed for using cheap rotors or machining them wrong... as a repair shop we pretty much have to go every component one at a time and recomend every questionable part to avoid a comeback, then they go to another shop who replaces rotors, the wobble goes away and we look stupid, but they are doomed to come back to us saying the other shops repair did not last.

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