Fabtech 17-21 Ford F250/F350 4WD 4in 4Link Sys w/4.0 & 2.25

Starting with the stainless steel body of the Dirt Logic 4.0 Coilover, you know this Fabtech 4-inch 4-Link Conversion System is built to handle tough conditions. This system is designed to replace the factory radius arm setup on your 2017-2020 Ford F-250 or F-350 4WD, giving you a significant upgrade in suspension performance for both on and off-road driving.

The heavy-duty 4-link components are engineered for increased strength and offer more articulation than the stock radius arms, which really helps when you're tackling challenging terrain. You'll notice near-zero caster change throughout the suspension's travel range, benefiting your on-road handling. Up front, the Dirt Logic 4.0 Coilover conversion bolts directly into the factory coil spring bucket without needing to remove it. These coilovers feature a massive 4-inch diameter aluminum remote reservoir, mounted horizontally to allow for full compression even with oversized tires. For the rear, the system includes a 5-inch lift block, extended bump stop brackets, and Dirt Logic 2.25 shocks to balance the ride quality.

This system comes with a 5-year, 60,000-mile powertrain warranty, giving you added peace of mind. The 2-inch diameter, heavy-wall links use race-style 1-inch Uniballs for exceptional strength, and the 1/4-inch steel brackets attach to the frame securely without any cutting or welding required. You'll also get Sway Bar Drops, a Trac Bar relocation bracket, a Pitman Arm, and a U-Bolt kit to complete the installation.