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 4.0 Dirt Logic Stainless Steel coil over shocks and rear 2.25 Dirt Logic Stainless Steel shocks. System also includes Billet Sway bar links, Trac Bar relocation bracket, Pitman Arm and more. Rear lift options include a block and U-Bolt kit.