8'' Lift Kit - GM Silverado / Sierra 2500HD/3500HD W/ Falcon 1.1 Shocks 2020-2024

8" Big Lift Kit

Made to fit 2020-2024 GM 2500HD/3500HD 4WD and AT4 Models.

Complete front/rear off-road suspension system.

Includes (4) Falcon 1.1 Monotube Shocks.

Allow for up to 38" tall tires.

Uses ReadyLIFT's Forged Torsion Keys.

Made In U.S.A.

See Details for Notes on Tow Package Compatibility.

Note:  Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT.  

• Our all-new 44-30820 8" lift kits with ReadyLIFT Falcon 1.1 Monotube shocks are a great option for the customer who wants a taller, lifted height and the ability to run up to 38" tall tires. The 44-30820 lift kits include laser-cut, fabricated heavy-duty steel cross-members, new cast iron OE-style knuckles with the perfect geometry built-in, torsion arm brackets, popular fabricated steel upper control arms with corrected ball joint angles, taller fabricated steel rear lift blocks and new forged torsion keys with the proper amount of indexing. . These new torsion bar relocation brackets eliminate the traditional lowering of the torsion bars, which can inhibit ground clearance from a lift installation and help to improve the overall driving experience. Additionally, each kit includes crucial differential drop brackets and CV axle spacers, 12" sway bar end links, bump stop extensions, OE style cast iron rear lift blocks, heavy-duty steel skid plate, and finally, Falcon 1.1 Monotube shocks.

  Features & Benefits:

  • Laser cut, CNC formed heavy-duty front/rear drop crossmembers.
  • Bolt-on installation “ well almost. Some slight modifications will be required.
  • OE-style cast iron knuckles have been precisely engineered to provide the ideal geometry to ensure proper alignment and improve the overall driving experience.
  • Increases ground clearance.
  • Includes our new torsion bar relocation brackets that keep the torsion bars in their factory location “ no need to lower the torsion bars to lift!
  • 6 lift kits - Allows for 37x12.50 on a 9" wide wheel with zero offset.
  • Available with ReadyLIFT Falcon 1.1 Monotube F/R shocks.
  • Includes important differential drop brackets and CNC-machined billet Aluminum CV axle spacers.

  NOTE:  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.

  Tire Fitment

  • 38" Maximum tire diameter

    38x12.50 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.

    Kit Components

    • Heavy Duty welded steel crossmembers

      Heavy Duty iron knuckles
      

      Cast iron rear lift blocks with integrated bump stop landing pads.
      

      forged torsion keys with the proper amount of indexing
      

      Heavy duty skid plate.
      

      Assorted hardware and accessories
      

      Includes 4 Falcon 1.1 Monotube Shocks.

      Installation

      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.

      
      

      DO IT YOURSELF: Please read Instructions thoroughly and completely before beginning installation. Installation by a certified mechanic is recommended. ReadyLIFT Suspension Inc. is NOT responsible for any damage or failure resulting from improper installation. Download Pdf Instructions

      Estimated Installation Time: 12 Hours +/- 1 hour (excluding alignment and wheel/tire assembly)

      • California Residents: Prop 65 WARNING

        Features & Benefits:

        • Laser cut, CNC formed heavy-duty front/rear drop crossmembers.
        • Bolt-on installation “ well almost. Some slight modifications will be required.
        • OE-style cast iron knuckles have been precisely engineered to provide the ideal geometry to ensure proper alignment and improve the overall driving experience.
        • Increases ground clearance.
        • Includes our new torsion bar relocation brackets that keep the torsion bars in their factory location “ no need to lower the torsion bars to lift!
        • 6" lift kits - Allows for 37x12.50 on a 9" wide wheel with zero offset.
        • Available with ReadyLIFT Falcon 1.1 Monotube F/R shocks.
        • Includes important differential drop brackets and CNC-machined billet Aluminum CV axle spacers.