ReadyLIFT 4 Inch Coil Spring Lift Kit - 2017-2022 Ford F-250 F-350 Super Duty Diesel (49-27423)

This ReadyLIFT kit gives the 2017-2022 Ford F-250 and F-350 Super Duty Diesel a bolt-on 4 inch coil spring lift with four Falcon 2.1 monotube shocks and heavy-duty tubular radius arms that help correct caster angle. ReadyLIFT lists it for 4WD Power Stroke diesel trucks with single rear wheels. It allows larger tires and wheels and adds ground clearance, with no structural modifications required.

Key features

• Heavy-duty tubular radius arms that help correct caster angle
• Four Falcon 2.1 monotube shocks, front and rear
• Front track bar relocation bracket
• Model-specific brake line brackets, bump stop extensions and sway bar frame mount extensions
• Progressive microcellular foam bump stops
• Shock build: 2.3 inch body, 6061-T6 aluminum alloy billet piston, 3/4 inch induction-hardened chrome-plated shaft

What's included

• 4 inch lift springs
• Falcon 2.1 monotube front and rear shocks
• Radius arms
• Track bar relocation bracket
• Sway bar drops
• Bump stop extensions
• Carrier bearing drop
• Front brake line brackets
• Fabricated rear lift blocks
• Hardware pack

Fitment and compatibility

• Fits 2017-2022 Ford F-250 and F-350 Super Duty Diesel
• ReadyLIFT lists it for 4WD Power Stroke diesel trucks, single rear wheel only
• Not recommended for 2WD or gas trucks
• Tremor versions will not gain the full 4 inches over stock ride height
• 2017-2019 trucks: ride height may be slightly lower
• Single cab has not been validated for fitment and drivability by ReadyLIFT
• Max tire is listed as up to 37 inch tall on 9 inch wide wheels. Tire fit examples: 37x12.5R18 on 18 inch wheels, 37x12.5R20 on 20 inch wheels, 325/60R22 on 22 inch wheels
• Test fit any tire and wheel combination before installing; larger E-rated tires can make the ride feel stiffer

Specifications

• Brand: ReadyLIFT
• Part number: 49-27423
• Lift: 4 inch
• Max tire: up to 37 inch tall on 9 inch wide wheels
• Shocks included: Yes (four Falcon 2.1 monotube)
• Estimated install time: 6 hours, plus or minus 1 hour

Installation

Allow about 6 hours, plus or minus 1, not counting alignment or wheel and tire assembly. ReadyLIFT labels it do-it-yourself and asks you to read the instructions completely before starting, but recommends a certified mechanic.

Modifying your suspension can change handling and increase rollover or loss-of-control risk in sharp turns or abrupt maneuvers, and some modifications may not be permitted in some states. Always wear your seat belt. California Proposition 65: this product can expose you to chemicals including DEHP, which California lists as causing cancer and birth defects or other reproductive harm.