This kit strengthens your rear suspension while also adding 2 degrees of camber adjustment. These arms are a performance racing upgrade, while they can be daily driven without problems expect them to stiffen the rear suspension of your Trackhawk. Includes all necessary bushings and uses factory bolts to install. Fits Trackhawk, Durango SRT, and Jeep SRT. This kit is not compatible with the Eibach or other oversized sway bars.