For the ultimate in suspension performance for the Super Duty we offer a bolt on 4 Link System that provides unsurpassed articulation and wheel travel. These 2" diameter heavy wall links feature race style 1" Uniballs for superior strength. Thick 1/4" steel brackets secure the 4 Links to the frame without cutting or welding. This 4 Link system allows the use of our replacement Coil Springs. The system also includes Sway bar drops, Trac Bar relocation bracket, Pitman Arm, and a rear Block & U-Bolt kit. Includes Dirt Logic 2.25 Shocks. This system qualifies for our 5/60 Powertrain Warranty.