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ReadyLift Suspension

6'' Big Lift Kit 2019-2023 Chevrolet Silverado 1500 Trail Boss / 2019-2023 GMC Sierra 1500 AT4

$2,547.95
SKU: 44-39620
Quantity: We have 0 in stock Nationwide.
See if this product fits your vehicle.

QUICK OVERVIEW Maintains the factory ride and handling. Delivers clearance for increased aftermarket tire sizes - up to 37x12.50 on 6-inch kit on 9" wide wheels with 0 offsets with no trimming. -18 offset will require minor trimming. The proprietary lower strut clamshell design maintains factory geometry and retains the...

Out Of Stock
6'' Big Lift Kit 2019-2023 Chevrolet Silverado 1500 Trail Boss / 2019-2023 GMC Sierra 1500 AT4

6'' Big Lift Kit 2019-2023 Chevrolet Silverado 1500 Trail Boss / 2019-2023 GMC Sierra 1500 AT4

$2,547.95
Out Of Stock
Out Of Stock

QUICK OVERVIEW

Maintains the factory ride and handling.

Delivers clearance for increased aftermarket tire sizes - up to 37x12.50 on 6-inch kit on 9" wide wheels with 0 offsets with no trimming. -18 offset will require minor trimming.

The proprietary lower strut clamshell design maintains factory geometry and retains the use of the factory strut.

Tube steel upper control arms with maintenance-free pivot bushings and 1-ton ball joints.

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 provide proper pinon angle. Also includes rear add-a-leaf for additional 1.5" lift.

Includes premium Falcon 1.1 Monotube extended-length rear shocks.

Includes ReadyGuard Powertrain Warranty. Note:  Use of Auto 4 Hi feature not recommended.

 

DETAILS

The 44-39620 lift kit utilizes the very best in ReadyLIFT engineering with boxed steel front/rear cross members and a 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" (4" + 2") lift kit features heavy-duty angled and offset top mount strut extensions that realign 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 fabricated steel rear blocks with integrated bump stop landings have been added as well as new rear Falcon 1.1 Monotube shocks.

With months of engineering and development and more awesome features than we could possibly mention, this new Big Lift Kit is the best 4" lift kit you can install on a new body style 2019-2023 GM 1500 4WD truck built with 2" factory lift! 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!

 

TIRE FITMENT

Recommended max tire with no trimming: 20x9 0 offset - 37x12.50 tire.

*Max with trimming: 20x10 -18 offset - 37x12.50.

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.

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.

Note: Not compatible with rear mono-leaf springs. Click here to learn how to determine if you have rear mono-leaf springs.

 

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.

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)

Install Time:

Important Notes:

Install Guides:

In the Box: