The ICON Vehicle Dynamics 2015-UP Ford F150 2WD Stage 4 suspension system is the best choice for drivers looking to maximize the on and offroad potential of their trucks and will inspire confidence behind the wheel in nearly any situation. ICON engineers’ primary focus is to increase wheel travel and damping ability, which translates into outstanding vehicle control and ride quality both on and off-road. This system includes vehicle-specific tuned 2.5” coilover shocks featuring an external remote reservoir for exceptional cooling properties and ICON-engineered Eibach coil springs for superior vehicle “feel” through the range of travel. These coilovers are also height adjustable from 1.75-3” allowing the use of larger, more aggressive wheel and tire combinations. Billet aluminum upper control arms on the F150 not only add strength and durability, but help retain factory alignment spec range increasing caster over stock. ICON 2.5 Series Piggyback rear shocks like the 2.0 utilize a vehicle-specific valving that balances the performance of the truck from front to rear. 2.5" reservoir shocks front and rear ensure optimum performance by increasing the duration of consistent damping regardless of situation, keeping the shocks at a cooler operating temperature during extended offroad use.The ICON Vehicle Dynamics 2015-UP F150 2WD 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.; This system features upper control arms with ICON's patent pending Delta Joint. The Delta Joint is a heavy duty high angle ball joint that combines the durability of a ball joint with the performance characteristics of a traditional uniball. While the industry standard uniball does a great job of allowing the control arms of a vehicle to articulate with little bind, they do have an inherent weakness that leaves more to be desired when used in a daily driven application - exposure to the element