6" ReadyLIFT Suspension BIG Lift Kit | MAX3.3 Suspension Systems (Ford F-150 2021-2024)

After you complete your purchase, one of our experts will contact you to verify proper fitment.
The vehicle information you provided will be saved.

*All other brand lift kits are available.

ITEM# RLF126

MFG# 42-21640

• ReadyLIFT is excited to announce our all-new 6" MAX3.3 Suspension Systems for the 2015-2020 Ford F-150s. The MAX3.3 Suspension Systems deliver first-class ride and handling with plenty of tire clearance and a great-looking lifted stance in our all-new family of high-performance big lift suspension systems for Ford F-150 4WD models. ✔
• 3.3 Fast Adjust Dampers offer a wide range of adjustability for specific terrain and/or handling characteristics with two separate knobs to tune to your preference. ✔
• 3-Position Fast Adjust Knob for Soft, Custom, and Firm Compression. Soft mode allows a partial bypass of the main piston for a softer ride✔
• 8-Position Micro Adjust Dial offers refined damping adjustments✔
• Reservoir design increases nitrogen to oil ratio for consistent damping over wide temperature ranges. ✔
• DOM tube steel upper control arms with Proprietary Heavy-Duty High-Angle Ball Joint.✔
• Heavy-duty fabricated steel components utilizing 3/16" and 1/4" steel plate✔
• Full-coverage differential skid plate constructed from 3/16" steel plate✔
• Includes HD alignment cam bolts for 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 fit vehicles equipped with CCD, 2WD, and Raptor.✔

ReadyLIFT is excited to announce ReadyLIFT's all-new 6" MAX3.3 Suspension Systems for the 2021-2024 Ford F-150s. The MAX3.3 Suspension Systems deliver first-class ride and handling with plenty of tire clearance and a great-looking lifted stance in ReadyLIFT's all-new family of high-performance big lift suspension systems for Ford F-150 4WD models.

The all-new Ford F-150 6" MAX3.3 kits come with the new Falcon 3.3 Fast Adjust Dampers providing unrivaled on and offroad utilizing Falcon's exclusive Fast Adjust technology. The Falcon 3.3 Fast Adjust Dampers have the ability to quickly adjust the ride from Soft to Firm with a quick flip of the Fast Adjust Knob, or anywhere in between using the 8-position Micro Adjust Dial. The Mico Adjust Dial is a unique feature for fine-tuning your ride easily between the primary Fast Adjust settings to create a true multi-purpose vehicle that excels in every category. Whether you are cruising to work in the morning or towing to camp in the afternoon followed by exploring in the evening - the Falcon 3.3 Fast Adjust Dampers will provide miles of smiles.

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! The new 6" system includes 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. Topping off this premium suspension system is ReadyLIFT's all-new Upper Control Arms. These new arms offer increased strength and travel, with corrected geometry and alignment for your newly lift truck.

Features and Benefits:
3.3 Fast Adjust Dampers offer a wide range of adjustability for specific terrain and/or handling characteristics with two separate knobs to tune to your preference.
3-Position Fast Adjust Knob for Soft, Custom, and Firm Compression. Soft mode allows a partial bypass of the main piston for a softer ride
8-Position Micro Adjust Dial offers refined damping adjustments
Reservoir design increases nitrogen to oil ratio for consistent damping over wide temperature ranges.
Hard Anodized Large Bore 6061-T6 Aluminum Shock Body for impact and corrosion resistance as well as increased oil volume for consistent performance.
VOD (Volume Optimized Damping) features a digressive linear piston for quicker ramp-up for reduced body roll and an overall increase in damping to reduce bottom out when pushed to the limit.
Red Line high VI shock oil for consistent performance across all temperatures from -50F to 450F with anti-wear and lubricity agents.
DOM tube steel upper control arms with Proprietary Heavy-Duty High-Angle Ball Joint.
Heavy-duty fabricated steel components utilizing 3/16" and 1/4" steel plate
Full-coverage differential skid plate constructed from 3/16" steel plate
Includes HD alignment cam bolts for 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 fit vehicles equipped with CCD, 2WD, and Raptor.

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

· CROSSMEMBER, FRONT
· CROSSMEMBER, REAR
· SKID PLATE
· CROSS MEMBER BOX
· DIFFERENTIAL DROP, DRIVER
· DRIVER DIFFERENTIAL SUPPORT BRACKET
· DIFFERENTIAL DROP, PASSENGER
· PASSENGER DIFFERENTIAL SUPPORT BRACKET
· SWAY BAR DROP DOWN BRACKETS - LEFT (DRIVER)
· SWAY BAR DROP DOWN BRACKETS - RIGHT (PASSENGER)
· MACHINED FRONT DRIVE LINE SPACER
· F-150 CAST KNUCKLE, DRIVER
· KNUCKLE BOX
· F-150 CAST KNUCKLE, PASSENGER
· KNUCKLE BOX
· REAR BRAKELINE DROP BRACKET
· 16MM Carrier Bearing Spacer
· Driver Block
· Passenger Block
· U Bolt Kit
· ALIGNMENT CAM BOLT KIT
· F-150 FALCON 3.3 COILOVER FR LFT
· F-150 FALCON 3.3 COILOVER FRT RT
· F-150 6" REAR SHOCK - FALCON
· DIFF BREATHER VENT
· FRONT BRAKELINE SUPPORT BRACKET
· REAR E-BRAKE DROP BRACKET
· F-150 UPPER CONTROL ARM KIT
· HARDWARE

Local pickup welcome.

Some vehicles may require additional modifications or parts.

Guaranteed Fitment.

Questions Call us at (888) 814-1158