Fabtech 17 Ford F450/F550 4WD Diesel 6in 4Link Sys w/Coils & Stealth

Fabtech is known for building robust suspension systems that can handle tough conditions, and this 6-inch 4-Link Conversion system for your 2017 Ford F450 or F550 4WD Diesel is a prime example. If you're looking to significantly increase your truck's off-road capability and wheel travel, this kit is designed to do just that, handling both on-road driving and demanding off-road use.

This system features 2-inch diameter heavy wall link arms that attach to strong 1/4-inch thick steel frame brackets. At the axle, these arms use 1/4-inch steel brackets with adjustable alignment cams and Fabtech's 5 Ton joints, which are built for an extended service life. The included American-made coil springs are tuned for a comfortable ride on the highway and good compliance off-road. To keep the axle centered with the added lift, a 1/4-inch thick steel bracket relocates the factory track bar, and a stout box-style bracket is used to prevent deflection. The kit also includes a forged steel Dropped Pitman Arm, which is stronger than the factory part, and heavy-duty 1/4-inch steel brackets to control suspension travel and manage compression impacts. For the front sway bar, 1/4-inch thick steel drop brackets reposition it to work correctly with the increased ride height, allowing the links to cycle without binding. Brake line brackets are included to relocate the factory lines without needing to open the brake system, and a 1/4-inch thick steel bracket with a support brace retains the factory steering stabilizer to help reduce tire shimmy.

Out back, steel rear lift blocks replace the factory ones for additional height without affecting ride quality or load capacity, and American-made U-bolts secure the rear differential. The included Stealth shocks feature a 2-inch diameter body with a Nitrocarb piston rod for corrosion resistance and protection against rock chipping, offering a great highway ride and capable off-road damping. This bolt-on system, which requires no cutting or welding, provides impressive articulation and wheel travel, and comes complete with sway bar drops, a track bar relocation bracket, pitman arm, and U-bolt kit.