The ReadyLIFT 8.5 inch Big Lift Kit for 2017-2022 Ford Super Duty Diesel trucks is a flagship suspension system that allows for the fitment of massive 38 to 40 inch tires. This kit features heavy duty radius arm drop brackets and a forged dropped pitman arm to correct suspension and steering geometry for a factory like feel. To handle the increased lift height, the system includes a transfer case clocking ring and a heavy duty transmission crossmember to optimize driveline angles, while Falcon 1.1 performance shocks provide superior damping and roll control.

Features

• Radius arm drop brackets maintain factory caster geometry for stable and predictable steering.
• Driveline Indexing System includes a transfer case clocking ring to optimize pinion angles and prevent vibration.
• Falcon 1.1 Monotube performance shocks are specifically tuned for the weight of the Super Duty diesel platform.
• Forged dropped pitman arm and track bar relocation bracket ensure accurate steering and centered axle alignment.
• Engineered front coil springs provide a full 8.5 inches of lift while maintaining a comfortable ride.
• Fabricated steel rear lift blocks and add-a-leaf components provide 7 inches of rear lift for a level stance.
• Heavy duty 3/16 inch plate steel front skid plate protects the differential and underbody components.
• Extended brake line brackets and sway bar drops ensure all components function safely at full articulation.

Notes

• This kit is designed for Ford Super Duty trucks equipped with the 6.7L Power Stroke Diesel engine.
• Professional installation is highly recommended due to the complexity of the transfer case clocking and geometry corrections.
• Vehicle alignment and headlamp aim must be adjusted following the installation for safety.
• Trimming of the front valance and inner fender liners will be necessary for 38 to 40 inch tire clearance.

Compatibility Notes

• Fits 2017 to 2022 Ford F250 and F350 Super Duty 4WD Diesel trucks.
• Specifically designed for Single Rear Wheel (SRW) models.
• Not compatible with gasoline powered trucks, 2WD models, or Dually (DRW) configurations.
• Tremor models will gain less than the stated 8.5 inches of lift over their factory height.

Tire Fitment

• Maximum Tire Diameter: 38 to 40 inches (depending on wheel offset and trimming).
• Recommended Setup: 38x13.50 tires on a 10 inch wide wheel with a -18 to -24 offset.
• Tire manufacturer dimensions vary; test fitting is highly recommended before final installation.

Shock Specs

• Shock Type: Falcon 1.1 Monotube series performance dampers.
• Construction: 2.125 inch 6061-T6 aluminum alloy shock bodies for high impact resistance and heat dissipation.
• Technology: Features Volume Optimized Damping (VOD) for consistent performance and improved low speed control.
• Fluid: Uses Red Line high VI shock oil for consistent damping in extreme temperature ranges.

Specs

• Front Lift Height: 8.5 inches.
• Rear Lift Height: 7 inches.
• Kit Contents: 8.5" Front Springs, Four Falcon 1.1 Shocks, Radius Arm Drop Brackets, Dropped Pitman Arm, Track Bar Relocation Bracket, Clocking Ring, Transmission Crossmember, Sway Bar Drops, Bump Stop Extensions, Rear Blocks, and Add-a-leaf.