6" ReadyLIFT Suspension BIG Lift Kit (Ford F-150 2021-2023)

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*All other brand lift kits are available.

ITEM# RLF604

MFG# 44-21630

• Tapered front strut spacers to correct strut angle✔
• Heavy-duty fabricated steel components utilizing 3/16" and 1/4" steel plate✔
• Kits include carrier bearing drop bracket kit for 2-piece driveline equipped trucks✔
• Full-coverage differential skid plate constructed from 3/16" steel plate.✔
• Includes HD alignment cam bolts for a proper front-end alignment✔
• Tire size 295/65R20 with a 20x9" with a 0 offset wheel✔
• Max tire with trimming 37x12.50" with a 20x9" with a 0 offset wheel*Does NOT come with shocks. Kit is ONLY for CCD equipped trucks.✔
• Note: Does NOT fit 2WD, Tremor, and Raptor. NOT compatible with Ford BlueCruise.✔

ReadyLIFT's all-new Ford 6" Lift Kits have become a crowd favorite for the new 2021-2023 F-150 trucks. With high demand, we are excited to announce ReadyLIFT's new 44-21630 kit which is designed for trucks equipped with dampening adjustable CCD shocks. CCD stands for Continuously Controlled Damping and is a fully automated computer-controlled system that works alongside the Terrain Management System (TMS) for precise control and handling on changing road surfaces.


This new 6" Lift Kit delivers a first-class ride and handling with plenty of tire clearance combined with a great-looking lifted stance in ReadyLIFT's all-new family of high-performance big lift kits for Ford F-150 models. This new ReadyLIFT 6" Lift Kit is developed to give F-150 owners a complete big lift option that lifts the front of the vehicle 6" giving the F-150 a lifted but neutral stance.This CCD-compatible kit retains factory electronic shocks via precision-engineered shock extensions.


The new ReadyLIFT Ford F-150 6" kits are equipped with heavy-duty 1/4" steel plate construction front and rear crossmembers that offer unmatched strength for all driving conditions. Featuring a set of durable lifted knuckles and strut spacers, you gain enough ride height to run up to 35-inch tires with the right wheel, or a 37" tire with some trimming! The new 6" systems include everything necessary to correct suspension, steering, and driveline geometry to maintain on-road handling while improving strength and offroad capability. Fabricated steel 4" tall rear block offers the correct amount of rear lift while the factory-style U-bolts aid in ease of installation.

295/65R20 for no rub on a 9" wide wheel with 0 offset

37" Maximum tire diameter with possible trimming.

Tire Size Note: ReadyLIFT wheel and tire fitment recommendations are typically based on Wheel Pros wheels and Nitto tires. Due to product differences among tire manufacturers, tire specifications and dimensions including, but limited to, overall diameter, rolling diameter, tread width, aspect ratio, lug pattern, sidewall construction and inflation pressure, will vary meaningfully by tire and wheel manufacturer. Every tire and wheel combination should be test fit prior to installation. Consult your local installer to learn more about the right tire fitment for your application.

Ride Quality Note: When lifting a vehicle and installing aftermarket wheels and tires, a tire manufacturer's construction and material quality can alter vehicle ride quality. When increasing a vehicle wheel and tire size, most larger aftermarket truck and SUV tires are 10-ply (or more) E tires compared to typical OEM 6-ply C tires. This more rigid sidewall construction increases the perception of suspension stiffness often described as ride harshness. The ride, handling, traction, noise, fuel economy, and wear differences between All-Season, All-Terrain, Mud-Terrain, or Trail-Terrain type tires can be significant. Please take into account tire and wheel choice will generally have a meaningful impact on the ride & handling experience.

Please read Instructions thoroughly and completely before beginning installation. Installation by a certified mechanic is recommended.

Estimated Installation Time: 10 Hours +/- 1 hour (excluding alignment and wheel/tire assembly)

View Instruction Sheet

· 2 front strut spacers, 1 Driver Knuckle, 1 Passenger Knuckle, 1 Front Crossmember, 1 Rear Crossmember, 1 Driver Diff Drop, 1 Driver Diff Support Bracket,‚
· 1 Passenger Diff Drop, 1 Passenger Diff Support Bracket, 1 Skid Plate, 1 Driver Brake line Bracket,‚ 1 Passenger Brake Line Bracket, 1 Driver Sway Bar Drop,‚
· 1 Passenger Sway Bar Drop, 1 Front Drive Line Spacer, 1 Driver Rear Block, 1 Passenger Rear Block, 4 U-Bolts, 1 Rear Brake Line Bracket, 2 Rear Shocks Extensions‚
· 1 Carrier Bearing Drop, 1 Alignment Cam Kit, 1 Hardware Pack‚

Local pickup welcome.

Some vehicles may require additional modifications or parts.

Guaranteed Fitment.

Questions Call us at (888) 814-1158