ReadyLift Suspension Lift Kit 44-39600

The ReadyLIFT 6" Big Lift Kit is designed for the 2019-2021 Chevy Silverado and GMC Sierra 1500 trucks, excluding Trail Boss, ZR2, or AT4 / AT4X models. This kit, with part number 44-39600, features advanced engineering for exceptional ride quality and handling. Its components include boxed steel front/rear cross members and a 3/16" thick steel front skid plate. The 1/4-inch steel differential drop brackets are double gusseted with a boxed center rib, ensuring durability against torsional twisting of the front differential. The kit's standout feature is its heavy-duty, angled, and offset top mount strut extensions that realign struts for optimal shock performance and minimal wear. A lower mount strut pre-load spacer increases spring rate for handling larger wheels and tires. The rear lift comprises 5" tall fabricated steel blocks with integrated bump stop landings and Falcon 1.1 Monotube rear shocks. After extensive testing, this kit is proven to enhance the ride of GM 1500 trucks. It allows for up to 35x12.50 tires on 20x9 wheels with 0 offset without trimming, and larger sizes with modifications. However, it's NOT compatible with Adaptive Ride Control, Multimatic systems, or trucks with rear composite mono-leaf springs (identifiable by round U-bolts); it works only with traditional steel leaf springs (square U-bolts). Key features include maintaining factory ride and handling, top mount strut extensions for factory geometry, 3/16-inch thick steel plate cross members and skid plate, anti-torsion differential drop brackets, fabricated steel rear lift blocks with bump stop landings, Falcon 1.1 Monotube rear shocks, and a ReadyGuard Powertrain Warranty. Note: Use of Auto 4 Hi is not recommended with this kit.

ReadyLift Suspension Lift Kit 44-39600

Specifications:

California Proposition 65	WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/product.
Fitment	Direct Fitment
Front Lift Component	Spacer
Front Lift Height	6 Inches
Front or Rear	Front and Rear
Front Shocks	None
Install Difficulty	Difficult Requires Professional Installation
Installation Time	5+ Hours
Max Tire Size	35 Inch
Prop65 Chem1	Di(2-ethylhexyl)phthalate (DEHP)
Rear Lift Component	Block
Rear Lift Height	6 Inches
Rear Shocks	Falcon 1.1 Monotube
3097	Yes
Description_INV	RL 6'' GM 1500 LIFTKIT-W FALCON SHOCKS
Description_EXT	6" Lift Kit - GM Silverado / Sierra 1500 - 2019-2021 With Falcon 1.1 Monotube Shocks
Description_MKT	The ReadyLIFT 6" Big Lift Kit is designed for the 2019-2021 Chevy Silverado and GMC Sierra 1500 trucks, excluding Trail Boss, ZR2, or AT4 / AT4X models. This kit, with part number 44-39600, features advanced engineering for exceptional ride quality and handling. Its components include boxed steel front/rear cross members and a 3/16" thick steel front skid plate. The 1/4-inch steel differential drop brackets are double gusseted with a boxed center rib, ensuring durability against torsional twisting of the front differential. The kit's standout feature is its heavy-duty, angled, and offset top mount strut extensions that realign struts for optimal shock performance and minimal wear. A lower mount strut pre-load spacer increases spring rate for handling larger wheels and tires. The rear lift comprises 5" tall fabricated steel blocks with integrated bump stop landings and Falcon 1.1 Monotube rear shocks. After extensive testing, this kit is proven to enhance the ride of GM 1500 trucks. It allows for up to 35x12.50 tires on 20x9 wheels with 0 offset without trimming, and larger sizes with modifications. However, it's NOT compatible with Adaptive Ride Control, Multimatic systems, or trucks with rear composite mono-leaf springs (identifiable by round U-bolts); it works only with traditional steel leaf springs (square U-bolts). Key features include maintaining factory ride and handling, top mount strut extensions for factory geometry, 3/16-inch thick steel plate cross members and skid plate, anti-torsion differential drop brackets, fabricated steel rear lift blocks with bump stop landings, Falcon 1.1 Monotube rear shocks, and a ReadyGuard Powertrain Warranty. Note: Use of Auto 4 Hi is not recommended with this kit.
Description_FAB	6" lift kit for 20192021 GM 1500 4WD trucks
Description_FAB	Maintains factory ride and handling
Description_FAB	Allows for increased aftermarket tire sizes, up to 35'' on 6inch kit on 9" wide wheels with 0 offset with no trimming
Description_FAB	Top mount strut extensions maintain factory geometry and retain use of factory strut
Description_FAB	3/16inch thick steel plate cross members and skid plate
Description_FAB	Antitorsion boxed and gusseted plate steel differential drop brackets
Description_FAB	Fabricated steel 5" rear lift blocks with integrated bump stop landings and offset pin for proper pinon angle
Description_FAB	Includes premium Falcon 1.1 Monotube Shocks
Description_FAB	6" lift kit for 2019 6" lift kit for 20192021 GM 1500 4WD trucks
Description_FAB	Allows for increased aftermarket tire sizes, up to 35'' on 6 Allows for increased aftermarket tire sizes, up to 35'' on 6inch kit on 9" wide wheels with 0 offset with no trimming
Description_FAB	3/16 3/16inch thick steel plate cross members and skid plate
Description_FAB	Anti Antitorsion boxed and gusseted plate steel differential drop brackets
Description_DEF	Suspension Lift Kit

This Part Fits:

Year	Make	Model	Submodel	Notes
2019	Chevrolet	Silverado 1500	LT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2020	Chevrolet	Silverado 1500	LT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2021	Chevrolet	Silverado 1500	LT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2022	Chevrolet	Silverado 1500	LT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2019	Chevrolet	Silverado 1500	LTZ	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2020	Chevrolet	Silverado 1500	LTZ	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2021	Chevrolet	Silverado 1500	LTZ	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2022	Chevrolet	Silverado 1500	LTZ	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2019	GMC	Sierra 1500	Base	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2020	GMC	Sierra 1500	Base	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2021	GMC	Sierra 1500	Base	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2019	GMC	Sierra 1500	SLE	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2020	GMC	Sierra 1500	SLE	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2021	GMC	Sierra 1500	SLE	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2022	GMC	Sierra 1500	SLE	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2019	GMC	Sierra 1500	SLT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2020	GMC	Sierra 1500	SLT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2021	GMC	Sierra 1500	SLT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.
2022	GMC	Sierra 1500	SLT	Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.,Not compatible with rear mono-leaf springs.