2019-2024 F-150 6" MAX3.3 Suspension System (42-21640)

Fits

The brand new Ford F-150 6" MAX3.3 suspension system features the innovative Falcon 3.3 Fast Adjust Dampers, perfect for both on and off-road adventures. With Falcon's exclusive Fast Adjust technology, you can easily switch between Soft and Firm settings with a simple flip of the Fast Adjust Knob. Plus, the 8-position Micro Adjust Dial allows for precise adjustments in between the main settings, making this a versatile option for any driving situation. Whether you're commuting, hauling, or exploring, the Falcon 3.3 Fast Adjust Dampers will keep a smile on your face all day long.

Upgrade your Ford F-150 with the new ReadyLIFT 6" kits! Made with tough 1/4" steel plates, the front and rear crossmembers provide unbeatable strength for any driving situation. Lifted knuckles and strut spacers give you the perfect amount of lift for running 35" tires with killer style. This 6" system comes with everything you need for improved handling, strength, and offroad capability. With a sturdy 4" tall rear steel block and factory-style U-bolts included, installation is a breeze. And don't forget about the top-of-the-line Upper Control Arms - they offer increased strength, travel, and alignment for your newly lifted truck. Get ready to take your F-150 to the next level with ReadyLIFT!

Part Number: 42-21640

• Unmatched control and performance
• Provides 6" lift
• Falcon 3.3 series struts and shocks
• Fast Adjust Dampers
• Upgraded DOM tube steel upper control arms with corrected ball joint angles
• 3.3 Fast Adjust struts with rear adjustable piggyback shocks
• Ideal for daily driving, off-road excursions, and tow/haul duties
• Longer rear sway bar end links
• Heavy-duty cast iron knuckle
• Unusually robust steel skid plates
• Fits up to 37x12.50 tall tires on 9" wide wheels with 0 offset

Includes:

• 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

• Estimated Install Time: 10 Hours +/- 1 Hours  (excluding alignment and wheel/tire assembly) 
• Driver Rear Control Arm Pocket will need to be trimmed to offer clearance for the rear crossmember.
• Click Here

Notes:

Installation Alignment Note:  Your vehicle may require alignment after product installation. You may incur additional costs to align the vehicle.

Installation Headlamp Aim Note:  In addition to your vehicle alignment, for your safety and others, it is necessary to check and adjust your vehicle headlamps for proper aim and alignment after product installation.  You may incur additional costs to adjust the headlamp system.

 Installation Advanced Driver Assistance Systems (ADAS) Note:  If your vehicle is equipped with active or passive safety/collision monitoring and/or assistance/avoidance systems including, but not limited to, camera- or radar/sonar-based systems, check and adjust your vehicle’s systems for proper aim and function after product installation.   In some instances, your vehicle may require OEM dealer service tools and factory-trained technicians to re-calibrate ADAS.  You may incur additional costs to adjust ADAS systems.

SAEJ2492 WARNING: By installing this product, you acknowledge that the suspension of this vehicle has been modified. As a result, this vehicle may handle differently than factory-equipped vehicles. As with any vehicle, extreme care must be used to prevent loss of control or rollover during sharp turns or abrupt maneuvers. Always wear seat belts, and drive safely, recognizing that reduced speeds and specialized driving techniques may be required. Failure to drive this vehicle safely may result in serious injury or death. Do not drive this vehicle unless you are familiar with its unique handling characteristics and are confident of your ability to maintain control under all driving conditions. Some modifications (and combinations of modifications) are not recommended and may not be permitted in your state. Consult your owner's manual, the instructions accompanying this product, and state laws before undertaking these modifications. You are responsible for the legality and safety of the vehicle you modify using these components.

•  Does not fit vehicles equipped with CCD, 2WD, and Raptor.

• 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 20×9” with a 0 offset wheel
• Max tire with trimming 37×12.50” with a 20×9” with a 0 offset wheel

Tire Fitment

• 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.