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6'' MAX3.3 Suspension System W/ Falcon 3.3 Shocks And Fab UCA Arms - 2020-2025 GM Silverado / Sierra 2500HD/3500HD
- 6" Lift Kit GM HD Trucks
- Heavy-duty fabricated steel components utilizing 3/16″ and 1/4″ steel plate
- Full-coverage differential skid plate constructed from 3/16″ steel plate
- Laser cut, CNC formed heavy-duty front/rear drop crossmembers.
- Allow up to 37x12.50 with a 20×9” with a 0 offset wheel
- Xtreme-Duty fabricated 4130 chromoly steel upper control arms
- 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.
Note: Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT. Some GM HD trucks equipped with Tow Package may require custom-length U-bolts purchased separately. Custom U-bolt length may vary by vehicle application. If the ReadyLIFT kit's standard U-bolts are too short, ReadyLIFT recommends locally sourcing custom U-bolts built to each truck's specifications.
- 6" Lift Kit GM HD Trucks
- Heavy-duty fabricated steel components utilizing 3/16″ and 1/4″ steel plate
- Full-coverage differential skid plate constructed from 3/16″ steel plate
- Laser cut, CNC formed heavy-duty front/rear drop crossmembers.
- Allow up to 37x12.50 with a 20×9” with a 0 offset wheel
- Xtreme-Duty fabricated 4130 chromoly steel upper control arms
- 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.
Note: Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT. Some GM HD trucks equipped with Tow Package may require custom-length U-bolts purchased separately. Custom U-bolt length may vary by vehicle application. If the ReadyLIFT kit's standard U-bolts are too short, ReadyLIFT recommends locally sourcing custom U-bolts built to each truck's specifications.
Built for serious truck owners who demand more performance, capability, and confidence - on or off the road. ReadyLIFT is raising the bar once again with the release of our all-new 6” MAX3.3 Premium Suspension Systems for the 2020–2025 Chevy Silverado and GMC Sierra 2500/3500 HD. Engineered from the ground up to deliver the ultimate blend of strength, handling, and ride quality, this system is powered by our vehicle-specific Falcon 3.3 Fast Adjust Piggyback Shocks - the most advanced shocks ever offered in a ReadyLIFT HD system.
With Falcon’s dual-knob adjustability, drivers can fine-tune compression and rebound independently for any terrain or load. From highway cruising to heavy towing to weekend off-road adventures, the MAX3.3 system gives you full control of your truck’s ride and handling characteristics.
Engineered to Perform, Built to Last
This system is more than just a lift; it’s a complete suspension upgrade designed with precision geometry and heavy-duty construction. Highlights include:
- Laser-cut, CNC-formed crossmembers and full-coverage differential skid plate built from 3/16” steel.
- OE-style cast iron knuckles with corrected geometry for proper steering and handling.
- Xtreme-Duty 4130 chromoly steel upper control arms with corrected ball joint angles for long-term durability.
- Cast rear lift blocks and taller fabricated torsion arm brackets for a level stance and reliable strength.
The system clears up to 37x12.50 tires on 20x9 wheels (0 offset) giving your GM HD truck the aggressive stance and capability it deserves without sacrificing drivability.
Falcon 3.3 Fast Adjust Performance
- 3-Position Compression Knob: Soft, Custom, or Firm to instantly change ride feel.
- 8-Position Micro Adjust Dial: Fine-tune rebound damping with precision.
- Reservoir Design: High-capacity reservoir maintains consistently damping across temperature ranges.
- Hard-anodized 6061-T6 Aluminum bodies resist impact and corrosion while increasing oil capacity for consistent performance.
- VOD (Volume Optimized Damping) piston technology reduces body roll, improves control, and minimizes bottom-out in extreme conditions.
- Red Line High VI Shock Oil delivers consistent performance at extreme temperatures (-50°F to 450°F).
Built for Every Job
Whether you’re towing, hauling, exploring the backcountry, or just want the ultimate HD stance for daily driving, the ReadyLIFT 6” MAX3.3 delivers unmatched versatility, premium ride quality, and serious strength.
Note: Single cab fitment has not been validated. GM HD trucks with factory Tow Package may require custom-length U-bolts.
37" Maximum tire diameter
37x12.50 for no rub on a 9" wide wheel with 0 offset
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.
KNUCKLE DRIVER
KNUCKLE PASSENGER
TORSION BAR BRACKET, DRIVER
TORSION BAR BRACKET, PASSENGER
TORSION ARM SPACER x 2
TORSION ARM COLLAR x 2
FAB UCA 2020-2025 - CHEVY/GMC HD-KIT
TORSION KEY KIT
AMI DIFF DROP CHEVY HD 2011-UP x 4
LASER CUT WASHER DIFF SPACER ZINC x 4
2020+ GM HD XMBR, FR
2020+ GM HD XMBR, RR
SKID PLATE
CV AXLE SPACER x 2
DRIVER DIFF BRACKET
PASS DIFF BRACKET
DIFFERENTIAL CRADLE SPACER x 4
REAR 12" STRAIGHT END LINK x 2
CRUSH SLEEVE x 4
BUSHING x 4
FRONT BRAKE LINE BRACKET DRIVER
KNUCKLE DRIVER BRAKE LINE BRACKET
FRONT BRAKE LINE BRACKET PASSENGER
KNUCKLE PASSENGER BRAKE LINE BRACKET
BUMP STOP EXTENSION x 2
BUMP STOP NUT PLATE x 2
BUMP STOP EXTENSION WASHER x 2
2020+ GM 2500/3500,Coilover/ Remote Resi, Series 3 / Type 3, Single Finished /Front/Left
2020+ GM 2500/3500,Coilover/ Remote Resi, Series 3 / Type 3, Single Finished /Front/Right
2020+ GM 2500/3500, Smooth Body, Series 3 / Type 3, Rear Left x 2
Block Kit
REAR BRAKE LINE BRACKET
HARDWARE PACK
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.
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.
Have a certified mechanic do it for you!
TIRE/WHEEL SIZING GUIDE
