When you're ready to run 37in. tires on your Raptor and have the ultimate shock system to go with it then this is the kit for you. The lift features heavy duty ductile iron steering knuckles designed to handle 37in. tall tires with the vehicle’s ESC (electronic stability control) and Traction Control. Typically, 37in. tires will cause steering and brake issues on the factory Ford steering knuckles. Fabtech knuckles are designed for the oversized tires and will provide years of trouble free service. The lower Raptor control arms are relocated with 1/4in. thick steel Crossmembers and comes with a 1/4in. thick steel differential skid plate. To keep the front CV angles proper with the new ride height, the front differential is relocated down between the crossmembers for smooth 4WD operation. The front Raptor shocks are replaced with Dirt Logic 3.0 Coilovers that feature a remote reservoir compression adjuster. This allows for a compliant highway ride with the ability to adjust the compression damping for aggressive offroad use. The rear Dirt Logic 3.0 Bypass shocks allow for 12in. of wheel travel with two compression adjusters and one rebound adjuster for total damping control. The Dirt Logic 3.0 shocks will provide a noticeable increase in damping for Raptor owners looking to take their vehicle to the next level in suspension performance. These race quality Coilovers directly replace the stock Raptor Coilovers with improved offroad damping for aggressive driving in the most punishing conditions. They provide an additional 10% of wheel travel for a total of 11in. when used with uniball upper control arms. The Dirt Logic 3.0 shocks are constructed with a steel body and finished in a tactical black Cerakote coating for extreme durability. This coating provides 120 hour salt spray compared to zinc plated shocks only going 48 hour salt spray. NitroSteel 1-1/4in. piston rods are utilized to repel rock chipping while providing superior corrosion resistance.