The 2.5 Lift system for late model 2013 3500 Rams, with Radius Arm front suspension, features more than just basic spacers. Dodge designed the front coil springs with a large bow to increase vehicle stability and handling. Unlike other flat spacers on the market, Fabtechs angled spacers retain this important feature preserving the factory ride characteristics. The front shocks are replaced with longer length units to allow for full suspension travel while improving the damping of the front suspension. Extended length bump stops are included in this kit to prevent the coil springs from binding at full compression while also eliminating Trac Bar interference.