2003-2009 Ram HD 4x4 Radius Arm System & X-Member - 6" Lift (CS-DRA6-03-S)Description When installing a lift or leveling kit, it is imperative to maintain the alignment and geometry of your truck, or you're going to end up wheel hopping or crab walking down the road and potentially replacing your tires a lot sooner than you think. Dont be that guy. These bolt on Carli Radius Arms are built for trucks with 6" lift kits, and help keep your wheels & tires tilted to the appropriate degree through your suspension's longitudinal