Suspension Lift Kit | ReadyLift | 6.0 Inch | GM

SKU RL-44-39620

$2,799.95 Free Ship!
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Product Specifications

  • Front Lift Height:6"
  • Lift Type:Strut Extension/Blocks
  • Max Tire Size:37"
  • Typically ships in 2 to 3 business days.

Product Specs for ReadyLIFT Suspension, Inc. 44-39620

  • Front Lift Height:6"
  • Lift Type:Strut Extension/Blocks
  • Max Tire Size:37"
  • UPC: 194933302116
  • MPN: 44-39620
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ReadyLIFT Suspension, Inc. 44-39620 Details

ReadyLift 44-39620 6 inch Big Lift Kit for the Chevy Silverado 1500 Trail Boss and GMC Sierra 1500 AT-4 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.

Features & Benefits:

  • Maintains the factory ride and handling
  • Delivers clearance for increased aftermarket tire sizes - up to 37x12.50 on 6-inch kit on 9 inch 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 inch 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 inch lift
  • Includes premium Falcon 1.1 Monotube extended-length rear shocks
  • Includes ReadyGuard Powertrain Warranty

Kit Contents

  • Heavy-duty front-rear cross members and skid plate
  • Heavy-duty top mount strut extensions and rear shock 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
  • All necessary hardware and instructions

Installation Notes:

  • Use of Auto 4 Hi feature not recommended
  • Not for use on AT4X, ZR2, Diesel or Denali models
  • Only compatible with Adaptive Ride Control suspension vehicles
  • Not compatible with rear mono-leaf springs

Vehicle Application Guide for ReadyLIFT Suspension, Inc. 44-39620

The RL-44-39620 Suspension Lift Kit | ReadyLift | 6.0 Inch | GM is engineered to work with specific vehicles displayed below. Can't find your vehicle, or need assistance, please give us a call at 1-800-358-4751 or 1-989-755-0561. Browse the category Lift Kits Lift Kits by ReadyLIFT , to view all vehicle makes and models.

  • Chevrolet
  • GMC
YearMakeModelVehicle OptionInstallation Notes
2019 Chevrolet Silverado 1500 LT Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2019 Chevrolet Silverado 1500 Custom Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2019 GMC Sierra 1500 AT4Fits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on AT4X, ZR2, Diesel or Denali models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2020 GMC Sierra 1500 AT4Fits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on AT4X, ZR2, Diesel or Denali models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2020 Chevrolet Silverado 1500 Custom Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2020 Chevrolet Silverado 1500 LT Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2021 GMC Sierra 1500 AT4Fits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on AT4X, ZR2, Diesel or Denali models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2021 Chevrolet Silverado 1500 Custom Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2021 Chevrolet Silverado 1500 LT Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2022 GMC Sierra 1500 AT4Fits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on AT4X, ZR2, Diesel or Denali models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2022 Chevrolet Silverado 1500 Custom Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2022 Chevrolet Silverado 1500 LT Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2023 Chevrolet Silverado 1500 Custom Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2023 Chevrolet Silverado 1500 LT Trail BossFits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on ZR2 or Diesel models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.
2023 GMC Sierra 1500 AT4Fits 4 Wheel DriveUse of Auto 4 Hi feature not recommended. Not for use on AT4X, ZR2, Diesel or Denali models. Not compatible with Adaptive Ride Control or Multimatic suspension or compatible with rear mono-leaf springs.

Customer Q&A - ReadyLIFT Suspension, Inc. 44-39620


ReadyLIFT Suspension, Inc.

ReadyLift Suspension Inc. was founded on the principals of developing a line of economical suspension leveling products that would allow Truck and SUV owners to be able to “level” their vehicle in order to install Plus-size wheels and tires.

ReadyLift® Founder and CEO Scott Poncher realized that there was a huge consumer market that didn’t want a tall lift kit that would compromise gas mileage and that important nice factory ride. The ReadyLift line of suspension products was developed to provide consumers with a cost-effective alternative for their needs, essentially designing the exact product they were looking for. The core concept was pure and focused. Develop a line of suspension leveling products that would level a vehicle correctly, safely and without having to modify any of the factory components. ReadyLift stands by the statement that if you are going to lift your truck or SUV, there is only one brand that stands for quality and that brand is ReadyLift.

The combination of advanced technology, powerful marketing and innovative research and development have leveraged ReadyLift as the leading manufacture of leveling kits, lift kits, block kits, and the new Off Road Suspension systems. ReadyLift is constantly growing their product line with innovative product to give customers what they want. Most ReadyLift products are made in the USA and have a Limited Lifetime Warranty.

ReadyLift Warranty

Limited Lifetime Warranty

On all ReadyLift lift kits.

  • ReadyLIFT Off Road Suspension Series products are designed for off road use and are warranted as such against defects or damage to the product when used during off road driving.
  • All Jeep SST Lift Kit products are warranted when used in an off-road environment.

5 year - 60,000* mile Powertrain Warranty available when you purchase a qualifying ReadyLIFT suspension system and have it installed by a qualified professional installer.

What the warranty does not cover

Shock absorbers are not covered under the lifetime warranty. All freight charges are not covered. ReadyLIFT leveling kit, block kits and lift kit products are NOT intended for off-road abuse. Any abuse or damage as a result of off road use voids the warranty of the ReadyLIFT product.

You can view the full details of ReadyLIFT’s warranty here.

How to get service

Call ReadyLIFT at 1-800-549-4620 to get return authorization # for any return.

Customers are responsible for shipping back to ReadyLift. Uninstalled product returns must be in original Readylift packaging and include the outer carton or protective carton when shipping returns back to ReadyLIFT. If the product does not have an outer box customer will be charged an additional $10.00 re-box charge to the restocking fee.

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