Reach exceptional heights on your Ford F150 Raptor with the Fabtech Raptor 4-inch lift kit that allows 37" tires and still retains the factory SVT control arms and Fox Shox. Fabtech engineered the steering knuckles to handle the 37" tires. Stock steering and brakes cannot handle 37" tires. The heavy duty steering knuckles designed by Fabtech will not only handle the larger tires and brake issues, but provide trouble free service for many years. This Ford Raptor 4-inch lift kit relocates the Raptor SVT control arms using 1/4" thick steel crossmembers. This retains all the travel features of the Raptor for offroad use. Super stout shock extensions allow the Fox Shox to be retained. The front differential is relocated to maintain front CV angles for the new ride height. A 1/4" thick steel skid plate is also included. This Fabtech lift kit is ESC (Electronic Stability Control) and Traction Control compliant.Kit ComponentsHeavy Duty 1/4″ Thick, High Arched CrossmemberDuctile Iron Steering KnucklesHeavy Duty 1/4″ Thick Skid PlateFront & Rear Shock ExtensionsRear Block & U-bolt KitKit Features Retains factory FOX shocksMore aggressive stanceAllows a 37" tall tire37/12.50R18 Wheel Size – 18×9 w/ 5in BS w/minor trimming37/12.50R20 Wheel Size – 20×9 w/ 5in BS w/minor trimming