Designed for 2017-2022 Ford F250 and F350 4WD models, Fabtech’s 8″ 4 Link Conversion System delivers maximum suspension performance for both on-road stability and extreme off-road use. This premium system replaces the factory Radius Arm suspension with heavy-duty 4 Link components to significantly increase strength, articulation, and overall suspension functionality.
The advanced 4 Link geometry minimizes caster change throughout the suspension travel range, resulting in improved highway handling and predictable steering response. Off-road, the 4 Link design provides substantially more articulation than a traditional Radius Arm suspension, allowing the Super Duty to confidently traverse rugged terrain at all speeds.
Exclusive to this 8″ system is Fabtech’s extended length Track Bar, engineered to address the hyper-sensitive steering characteristics found in late-model Super Duty trucks. Fabtech is the only manufacturer offering this innovative solution, delivering proper steering geometry and dramatically improved handling with oversized tires.
The extended Track Bar is 4″ longer than stock and mounts to a stout 1/4″ thick steel frame bracket offset to the driver side. This design keeps the Track Bar and Drag Link closer to parallel than factory angles, reducing steering push, bump steer, and tire shake. The system allows full lock steering with 15.50″ wide tires on 4 3/4″ backspacing wheels.
Fabtech’s 4 Link System has been proven through more than 10 years of service in rugged commercial and military applications, ensuring long-term durability and reliability for daily driven Super Duty trucks.
Precision-engineered components and optimized suspension geometry make this system the pinnacle of Super Duty suspension performance. This system is backed by Fabtech’s free 5 Year / 60,000 Mile Powertrain Warranty.
