Product Details

The ReadyLift 6" Big Lift Kit is made for the 2019-2023 GMC Sierra 1500 AT4, giving it more ground clearance and room for larger tires.

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" (6" + 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.

Features

  • Maintains factory ride and handling
  • Anti-torsion boxed and gusseted plate steel differential drop brackets
  • Fabricated steel 5" rear lift blocks with integrated bump stop landings and offset pins
  • 11ton ball joints
  • 3/16 3/16inch thick steel plate cross members and skid plate
  • Provides clearance for increased aftermarket tire sizes
  • Minor trimming may be required for 18 offset
  • Proprietary lower strut clamshell design maintains factory geometry
Specifications
Part Number 44-39620
Part Name ReadyLift 6" Big Lift Kit
Vehicle 2019-2023 GMC Sierra 1500
Placement Front & Rear
Lift - Front 6"
Lift - Rear 6"
Max Tire Size 37"
Shocks Included Yes
Install Time 5+ Hours
Weight 276.00 lb
UPC 194933302116
Notes ReadyLIFT application: 6" Big Lift Kit 2019-2023 1500 Trail Boss / AT4.

Vehicle fitment

This product fits the vehicles listed below.

YearMakeModelNotes
2019GMCSierra 1500
2020GMCSierra 1500
2021GMCSierra 1500
2022GMCSierra 1500
2023GMCSierra 1500

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