2023-2025 Superduty 4WD 4" Coil Spring Lift Kit w/ Falcon Shocks (49-23420)

The ReadyLIFT 4-inch Coil Spring Lift Kit is a new suspension system designed for the Power Stroke diesel trucks. This kit includes front and rear Falcon 1.1 Monotube performance shocks, providing a great ride and handling performance, and is designed to improve stance, performance, and capability. It is considered the 'sweet spot' for Super Duty driving dynamics and maximum tire size while maintaining everyday usefulness. The coil spring system allows for increased tire sizes and widths along with providing improved ground clearance. The coil springs are OEM style linear springs specific for the diesel spring rate.

Features

• Provides a 4-inch front coil spring lift.
• Includes four Monotube Falcon 1.1 Shocks.
• Features Radius Arm Drops for correct caster angle.
• Includes a Track Bar Relocation Bracket.
• Bolt-on lift kit, requiring no structural modifications.
• Includes model-specific brake line extension brackets, bump-stop extension brackets, and front sway bar frame mount extension brackets.

Notes

• Tremor versions will not gain the full 4 inches over stock ride height.
• Trucks equipped with the "Onboard Scale" option will require the Auto-Leveling Headlight Bracket (PN 67-23410).
• If installed on a gas truck, the vehicle will be nose high and have a stiff ride because the springs are designed and rated for the heavier diesel engine.

Compatibility Notes

• Kits designed for Power Stroke diesel applications only.
• Not recommended for 2WD or gas trucks.
• Works for trucks with rear single-wheel only.
• Single Cab configuration has not been validated for fitment and drivability.

Tire Fitment

• Allows for up to 37-inch tall tires on 9-inch wide wheels with +18 offset.
• Recommended tire size is 37 inches by 12.5 inches.
• Recommended wheel: 17 inches and up x 9 inches wide, +25 offset / 6 inches backspacing (minor trimming of the front valance may be necessary).

Specs

• Front Lift: 4.0 inches (maximum)
• Maximum Tire Diameter: 37 inches
• Rear Block Size: 4 inches (replaces factory 2-inch block, netting 2 inches of rear lift).
• Shock Type: Falcon 1.1 Monotube Front and Rear Shocks
• Kit Contents: 4-inch Lift Springs, Falcon 1.1 Monotube Front and Rear Shocks, Track Bar Relocation Bracket, Radius Arm Drops, Sway Bar Drops, Bump Stop Extensions, Carrier Bearing Drop, Front Brake Line Brackets, Fabricated Rear Lift Blocks, and a Hardware Pack.