Fabtech?s 4 Link Conversion system for the Ford Super Duty has been designed to provide improved on road performance with the ability to tackle the most rugged offroad terrain. This high end system is a bolt on replacement to the factory Radius Arm suspension and comes with everything needed to convert to a 4 Link front suspension. The system will provide less caster change throughout the travel range which benefits on road driving. Offroad the 4 Link system will provide more articulation than a Radius Arm for increased terrain traversing at all speeds. Included in this system is the massive Dirt Logic 4.0 Coilover Conversion for outstanding damping capacity offroad with a quality on road ride. The Coilover bolts in place of the factory coil spring without removal of the coil spring bucket. The giant 4" diameter aluminum remote reservoir mounts horizontally above the Coilover to allow for full compression travel with oversized tires. The Dirt Logic 4.0 Coilover is the biggest and baddest on the market for the Ford Super Duty. Fabtech?s 4 Link System has been proven in over 10 years of service in military applications. High quality components with properly designed suspension geometry is the pinnacle of Super Duty suspension systems. System includes a free 5 year 60,000 mile powertrain warranty.. 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. The system also includes Sway Bar Drops, Trac Bar relocation bracket, Pitman Arm, and U-Bolt kit.. TIRE SIZE - 355/65R18 WHEEL - 18X9.5 W/4 3/4" BS W/MINOR TRIMMING; TIRE SIZE - 37/13.50R20 WHEEL - 20X10 W/4 1/2" BS W/MINOR TRIMMING; 3. NON DUALLY MODELS ONLY.; 27. FRONT DRIVE SHAFT MODIFICATION MAY BE REQUIRED TO CLEAR EXHAUST ON GAS MOTOR.; 29. REAR SPRINGS MAY REDUCE LOAD CARRYING CAPACITY. ; 170. VEHICLE MAY NOT SIT LEVEL DUE TO FACTORY REAR OPTIONS. 4 Link Lift System; 8 in. Lift; Incl. Front Dirt Logic 4.0 Resi Coilover; Rear Dirt Logic 2.25 Shocks; Rear Leaf Springs;. Fabtech 11-16 Ford F250/350 4WD 8in 4 Link System w/DL 4.0 Resi Coilovers & Rear DL 2.25 Shocks. 8" 4LINK SYS W/ 4.0 R/R & 2.25 & RR LF SPRNGS 2011-16 FORD F250/350 4WD. 8" 4LINK SYS W/ 4.0. Suspension Lift Kit. 4 Link Lift System. LftKt-Suspw/Shock

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