The Stage 4 system includes vehicle-specific tuned, extended travel 2.5 Inch coilover shocks with internal reservoirs paired with billet aluminum Delta Joint upper control arms. This combination allows for extended wheel travel and on-vehicle adjustment of the upper control arms to dial in front end alignment. The coilovers are also height adjustable from 0-3.5 Inch of lift over stock, allowing the use of larger, more aggressive wheel and tire combinations. ICON 2 Inch lift rear coil springs paired with 2.5 Aluminum Series remote reservoir rear shocks utilizing vehicle-specific valving offer increased performance compared to the 2.0 Aluminum Series shocks. ICONs billet aluminum lower links are much stronger than the OE units, improve articulation, and can be adjusted while installed on the vehicle for optimum pinion angle. On top of it all, these links have been designed to provide correct roll steer geometry for the best possible handling on and off-road. An adjustable rear track bar is also included for KDSS compatibility that also helps correct rear end alignment. The ICON Vehicle Dynamics Stage 4 suspension system is an excellent choice for those drivers looking to enhance the capabilities of their pickup on the road as well as in the dirt.