Designed for the 2019-2022 Ford F450 and F550 4WD, Fabtech’s 6-inch 4 Link Conversion System is engineered to handle the extreme on-road and off-road demands of heavy-duty Super Duty trucks. The F450 and F550 feature a more robust suspension than the F250 and F350, requiring specialized components that are exclusively developed by Fabtech.
This complete system includes everything required to convert the factory front suspension to a true 4 Link design. The 4 Link configuration reduces caster change throughout suspension travel, resulting in improved on-road handling and stability. Off-road, the system delivers increased articulation compared to a traditional radius arm setup, allowing the truck to better navigate rough terrain at all speeds.
Fabtech’s 4 Link System has been proven through more than 10 years of service in consumer, commercial, and military applications. Precision-engineered suspension geometry combined with high-quality components makes this system one of the most advanced Super Duty suspension solutions available.
All Fabtech components are manufactured in-house and designed with specific features and benefits to ensure long-term durability, performance, and reliability for demanding use.
