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6" Lift Kit - GM Silverado / Sierra 1500 - 2019-2021

$2,399.95
Out of stock
SKU
44-3960

2019-2021 GM 1500 4WD 6" Lift Kit

Maintains the factory ride and handling.
Delivers clearance for increased aftermarket tire sizes - up to 35'' on 6-inch kit on 9" wide wheels with 0 offset with no trimming.
Top mount strut extensions maintain factory geometry and retains use of the factory strut.
3/16-inch thick steel plate cross members and skid plate.
Anti-torsion boxed and gusseted plate steel differential drop brackets.
Fabricated steel 5" rear lift blocks include integrated bump stop landings, offset pin and provides proper pinon angle.
Includes premium Bilstein extended length rear shocks.
Includes ReadyGuard Powertrain Warranty.

Note:  Use of Auto 4 Hi feature not recommended.

Note: Not for use on Trail Boss, AT4, Diesel or Denali models.

Note:  Not compatible with Adaptive Ride Control suspension.

Out of Stock - Find a Dealer

This product ships in 7-10 business days.

Have a question? Please call 800-549-4620

TIRE/WHEEL SIZING GUIDE

California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm www.P65Warnings.ca.gov
  • ReadyLIFT® offers an all-new Big Lift Kit for the new 2019-2021 MY Chevy Silverado and GMC Sierra 1500 trucks! Introducing the ReadyLIFT 6" Big Lift Kit engineered for incredible ride quality and superior handling performance.

    44-3960 - 6"F-5"R Big Lift Kit - GM Silverado/Sierra 1500 4WD  Note: Not for use on Trail Boss or AT4 models.

    The 44-3960 lift kit utilizes the very best in ReadyLIFT engineering with boxed steel front/rear cross members and full width front skid plate constructed of thick 3/16" plate steel. New 1/4-inch boxed plate steel differential drop brackets feature a double gusset and boxed center rib to take the abuse of front differential torsional twisting.

    Our 6" lift kit features heavy-duty angled and offset top mount strut extensions that realigns the struts to optimize shock performance and minimize wear. A specially designed lower mount strut pre-load spacer offers the added benefit of a slight increase in spring rate to better handle the larger wheels and tires that will find their way onto this new lifted truck. To lift the rear, new 5" tall fabricated steel rear blocks with integrated bump stop landings have been added as well as new Bilstein 5100 series rear shocks.

    With over 9 months of engineering and development and more awesome features than we could possibly mention, the bottom line is this new Big Lift Kit is the best 6" lift kit you can install on a new body style 2019-2021 GM 1500 4WD truck! Thousands of miles of road and trail testing have proven our new 6" lift kit makes these new GM 1500 trucks ride better than stock!

    Recommended max tire with no trimming:  20x9 0 offset - 35x12.50 tire.*Max with trimming: 20x10 -18 offset - 35x12.50 or 325/60R20*Trimming requirements for larger than recommended wheel/tire include front valance, front felt liner edge, rear felt liner edge and front rear well edge mud flap.

    NOTE: Use of Auto 4 Hi feature not recommended.

    Not for use on Adaptive Ride Control vehicles. 

    Features:

    Maintains the factory ride and handling.
    Delivers clearance for increased aftermarket tire sizes - up to 35'' on 6-inch kit on 9" wide wheels with 0 offset with no trimming.
    Top mount strut extensions maintain factory geometry and retains use of the factory strut.
    3/16-inch thick steel plate cross members and skid plate.
    Anti-torsion boxed and gusseted plate steel differential drop brackets.
    Fabricated steel 5" rear lift blocks include integrated bump stop landings, offset pin and provides proper pinon angle.
    Includes premium Bilstein extended length rear shocks.
    Includes ReadyGuard Powertrain Warranty.

  • 20x9 0 offset - 35x12.50 tire.*Max with trimming: 20x10 -18 offset - 35x12.50 or 325/60R20*Trimming requirements for larger than recommended wheel/tire include front valance, front felt liner edge, rear felt liner edge and front rear well edge mud flap.

    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 8-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.

  • Heavy-duty front-rear cross members.

    Heavy-duty skid plate.

    Heavy-duty top mount strut extensions.

    Sway bar drop brackets.

    Heavy-duty fab steel rear lift blocks with bump stop landings.

    Heavy-duty cast iron lift knuckles engineered to retain factory quality geometry.

    Bilstein 5100 series rear shocks.

    All necessary hardware and instructions.

  • 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 that of factory-equipped vehicles. As with any vehicle, extreme care must be used to prevent loss of control or roll-over 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.

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

    Have a certified mechanic do it for you!

  • California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm www.P65Warnings.ca.gov

Quick Overview

2019-2021 GM 1500 4WD 6" Lift Kit

Maintains the factory ride and handling.
Delivers clearance for increased aftermarket tire sizes - up to 35'' on 6-inch kit on 9" wide wheels with 0 offset with no trimming.
Top mount strut extensions maintain factory geometry and retains use of the factory strut.
3/16-inch thick steel plate cross members and skid plate.
Anti-torsion boxed and gusseted plate steel differential drop brackets.
Fabricated steel 5" rear lift blocks include integrated bump stop landings, offset pin and provides proper pinon angle.
Includes premium Bilstein extended length rear shocks.
Includes ReadyGuard Powertrain Warranty.

Note:  Use of Auto 4 Hi feature not recommended.

Note: Not for use on Trail Boss, AT4, Diesel or Denali models.

Note:  Not compatible with Adaptive Ride Control suspension.

Details

ReadyLIFT® offers an all-new Big Lift Kit for the new 2019-2021 MY Chevy Silverado and GMC Sierra 1500 trucks! Introducing the ReadyLIFT 6" Big Lift Kit engineered for incredible ride quality and superior handling performance.

44-3960 - 6"F-5"R Big Lift Kit - GM Silverado/Sierra 1500 4WD  Note: Not for use on Trail Boss or AT4 models.

The 44-3960 lift kit utilizes the very best in ReadyLIFT engineering with boxed steel front/rear cross members and full width front skid plate constructed of thick 3/16" plate steel. New 1/4-inch boxed plate steel differential drop brackets feature a double gusset and boxed center rib to take the abuse of front differential torsional twisting.

Our 6" lift kit features heavy-duty angled and offset top mount strut extensions that realigns the struts to optimize shock performance and minimize wear. A specially designed lower mount strut pre-load spacer offers the added benefit of a slight increase in spring rate to better handle the larger wheels and tires that will find their way onto this new lifted truck. To lift the rear, new 5" tall fabricated steel rear blocks with integrated bump stop landings have been added as well as new Bilstein 5100 series rear shocks.

With over 9 months of engineering and development and more awesome features than we could possibly mention, the bottom line is this new Big Lift Kit is the best 6" lift kit you can install on a new body style 2019-2021 GM 1500 4WD truck! Thousands of miles of road and trail testing have proven our new 6" lift kit makes these new GM 1500 trucks ride better than stock!

Recommended max tire with no trimming:  20x9 0 offset - 35x12.50 tire.*Max with trimming: 20x10 -18 offset - 35x12.50 or 325/60R20*Trimming requirements for larger than recommended wheel/tire include front valance, front felt liner edge, rear felt liner edge and front rear well edge mud flap.

NOTE: Use of Auto 4 Hi feature not recommended.

Not for use on Adaptive Ride Control vehicles. 

Features:

Maintains the factory ride and handling.
Delivers clearance for increased aftermarket tire sizes - up to 35'' on 6-inch kit on 9" wide wheels with 0 offset with no trimming.
Top mount strut extensions maintain factory geometry and retains use of the factory strut.
3/16-inch thick steel plate cross members and skid plate.
Anti-torsion boxed and gusseted plate steel differential drop brackets.
Fabricated steel 5" rear lift blocks include integrated bump stop landings, offset pin and provides proper pinon angle.
Includes premium Bilstein extended length rear shocks.
Includes ReadyGuard Powertrain Warranty.

Tire Fitment
20x9 0 offset - 35x12.50 tire.*Max with trimming: 20x10 -18 offset - 35x12.50 or 325/60R20*Trimming requirements for larger than recommended wheel/tire include front valance, front felt liner edge, rear felt liner edge and front rear well edge mud flap.

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 8-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 front-rear cross members.

Heavy-duty skid plate.

Heavy-duty top mount strut extensions.

Sway bar drop brackets.

Heavy-duty fab steel rear lift blocks with bump stop landings.

Heavy-duty cast iron lift knuckles engineered to retain factory quality geometry.

Bilstein 5100 series rear shocks.

All necessary hardware and instructions.

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 that of factory-equipped vehicles. As with any vehicle, extreme care must be used to prevent loss of control or roll-over 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.

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

Have a certified mechanic do it for you!

Additional Information
California Residents: Prop 65 WARNING prop65 Cancer, Birth Defects and Reproductive Harm www.P65Warnings.ca.gov
Warning: This product can expose you to chemicals include [name of chemical], which [is/are] known to the State of California to case [cancer]/[birth defects or other reproductive harm]. For more information go to www.P65Warnings.ca.gov.