Fabtech's new 4'' F150 system utilizes their proven heavy duty construction and design features found in our 6'' systems but with less lift and at a much lower price. This 4'' Systems allows use of 35'' tall tires and features high arched lower control arm crossmembers constructed of 1/4 “ thick steel for maximum strength. The Fabtech ductile iron steering knuckles retain the stock track width keeping the tires under the fender for a clean appearance. Rear lift is accomplished with a block and u bolt configuration. The Basic System includes heavy duty front Coilover shocks for increased dampening capacity while retaining the factory coil springs. Rear shocks include Fabtech's Performance or Stealth shocks.