2005-2016 Superduty 4X4 CARLI SIG SERIES 2.0 IFP 2.5" LIFT FRONT SHOCK PKG (CS-FSIG20SPKG-F-LVL-05)Carli Signature Series Shocks are longer to accommodate the extended travel of a leveling kit. When designing the shocks, Zinc plating, Clear Coat for corrosion resistance and quality bushings were a must; finished off with boots to protect the shafts, they are backed by a limited lifetime warranty to ensure their quality is as unbeatable as their ride quality at this price point. Features 2. 0 Carli Signature Series Shocks, Front Pair Carli Custom