21-Current Ford F-150;4WD models only;Does not fit Raptor models;Includes PRO-VST coilovers, shocks and upper control arms;Heavy-duty construction;All critical suspension components constructed out of 3/16"" steel;Direct fit - Includes all necessary parts and hardware required for installation;Heavy-duty steering knuckles - Safely provides proper steering geometry for improved handling, traction/stability control compliant, reduces treadwear and other common post-lift issues;Crossmembers with skid plate made from 3/16"" steel to provide uncompromising strength and durability;Differential drop brackets provide heavy-duty strength to lower the differential while to eliminating flex/diff windup;Sway bar drop bracket strengthens the suspension and reduces side to side flex;Cam eccentric and bolts provides easy alignment at install that doesn't drop out of alignment;Rear lift blocks and u-bolts lift the rear of the vehicle to match the front and maintain a level profile;California Residents:WARNING