Those with Maxx Link sway bar ends...
 

Make sure you check them for correct tension periodically...

I experienced Death Wobble (DW) first hand for the first time ever in any of my trucks (I've owned and modified no less than five coil-link rams, with over a million combined miles)...stock tires, stock suspension, good components...but I found that my Maxx Links had gotten "loose" since I installed them. Tightened them down (over 3/8" of thread on each side) and not only has my DW not returned (this was the only change, same roads with the same sharp bumps), and the whole front end seems tighter now...the ends were tight when I installed them.

Not sure what happened that made them loose, but its worth checking...