Carli Suspension's Ford Super Duty Starter system is designed for people who want a 4.5" suspension lift and huge gains in performance and ride quality. Your truck will sit higher, level, have more wheel travel, plush ride quality, and OEM towing and weight carrying capacity.COMPONENTS-Bilstein 5100 Series Shocks-Carli Multi-Rate Coil Springs-Radius Arm Drop Bracket Kit with Dimple Die Cross Member-Sway Bar End Links-Adjustable Track Bar-6 Leaf Progressive Add-A-Pack (if selected)-Front Bump Stop Drops-Extended Braided Brake LinesFEATURES-Superior Ride Quality-Very Controlled Off Road-Increased Cornering Capability Reducing and/or Eliminating Body Roll-Tighter Street Feel Driving Characteristics-Increased Suspension Response-Steering geometry is all within OEM specs, no additional components are necessary-Towing/hauling capacity is the same as OEM, no reduction of capabilityALTERED VEHICLE CHARACTERISTICS-4.5" of Lift on the Front-2.5" of Lift on the Rear-Vehicle is "Leveled"-10.0" of Front Wheel Travel-12.0" of Rear Wheel Travel*F250's will require the factory F350 (non-dually) rear blocks to obtain a level stance. These blocks are available with the kit in the options listed above. No blocks will be required to maintain a level stance if Full Progressive Spring Pack Upgrade is purchased or if your truck is an F350 (non-dually).FITMENT GUIDEYear Model Part Number2011-2016 FORD F250 / F350 4x4 CS-F45-STR-112008-2010 FORD F250 / F350 4x4 CS-F45-STR-082005-2007 FORD F250 / F350 4x4 CS-F45-STR-05