'13 silverado LT...stock
'11 lt 4x4 z71..tvs1900
'01 gmc twins 6.0 jakes 400 ladder bars w/ coilovers tuned by nelson performance
I had one in my company truck in Odessa. It made a big difference out there, it was a Wilson but I don't remember which one. I know it was blue.
I don't know if that will help or not.
2011 Chevy crew cab 5.3
2013 Chevy crew cab 5.3