03-12 RAM HD 4.5 Inch Front 2.5 VS RR Pair ICON Vehicle DynamicsICON Vehicle Specific (V. S.) 2. 5 Aluminum Series shocks are designed and built to give your vehicle outstanding performance off road and a smooth ride on the street. These shocks are configured specifically for each application in both length and damping tune. Like all ICON'S Shock Absorbers, V. S. 2. 5 Aluminum Series shocks are 100 Percent rebuildable and 100 Percent revalveable. If you are looking for a more user defined tune, consider looking