ReadyLift - 4" Coil Spring Lift Kit w/ Falcon 3.3 Shocks & Radius Arms - 2017-2022 Ford Super Duty (4WD Diesel) - 43-27440

4" coil spring lift kit with four Falcon 3.3 monotube shocks, tubular radius arms, and a Falcon dual steering stabilizer for the 2017-2022 Ford Super Duty F-250/F-350 diesel 4WD.

ReadyLIFT's 4" Coil Spring Kit gives Super Duty owners premium ride quality and larger tire fitment at a lift height many consider the "sweet spot" for driving dynamics and everyday usefulness. Specially engineered coil springs are teamed with Falcon 3.3 piggyback shocks and a track bar relocation bracket. Heavy-duty tubular radius arms correct suspension geometry and are formed inward for additional tire clearance, while the Falcon dual steering stabilizer improves stability and reduces bump steer on the solid front axle. The direct bolt-on design requires no structural modifications.

Fits: 2017-2022 Ford Super Duty F-250/F-350 diesel 4WD (rear single-wheel only). Designed for diesel applications only; not recommended for 2WD or gas trucks. Tremor versions will not gain the full 4" over stock ride height. Single Cab configuration has not been validated by ReadyLIFT.

Features

• 4" coil spring lift with four Falcon 3.3 monotube dampers
• Tubular radius arms help correct the caster angle
• Falcon dual steering stabilizer included
• 3-Position Fast Adjust knob (Soft, Custom, Firm) and 8-Position Micro Adjust dial
• Reservoir design for consistent damping across temperatures
• Hard-anodized large-bore 6061-T6 aluminum shock bodies
• VOD (Volume Optimized Damping) digressive piston
• Red Line high-VI shock oil (-50F to 450F)
• Bolt-on installation - no structural modifications required

Kit Includes

• 4" lift coil springs
• Falcon 3.3 monotube front and rear shocks
• Track bar relocation bracket
• Tubular radius arms
• Falcon dual steering stabilizer
• Sway bar drops
• Bump stop extensions
• Carrier bearing drop
• Front brake line brackets
• Fabricated rear lift blocks
• Hardware pack

Tire Fitment

Recommended up to 37x12.5" tires on 17"+ x 9" wide wheels with +18 to +25 offset / 6" backspacing (minor trimming of the front valance may be necessary).

Notes

Vehicle alignment required after installation. Estimated install time approximately 6.5 hours (excluding alignment).