ReadyLift Suspension Lift Kits 44-39615 Kit, Front and Rear, 6 in. Lift, Chevy, GMC, Kit

SKU: RLS44-39615

Suspension Leveling & Lift Kits

ReadyLift Suspension Lift Kits 44-39615 Kit, Front and Rear, 6 in. Lift, Chevy, GMC, Kit

SKU: RLS44-39615

Suspension Leveling & Lift Kits

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Description

ReadyLift Suspension lift kits provide front and rear lift solutions to boost your vehicle's stance. They offer a huge selection of kits to give your truck, Jeep, or SUV just the right posture and attitude you are looking for. ReadyLift SST (Smart Suspension Technology) lift kits are the original mid-lift solutions for those who want more than what a leveling kit offers, but less overall height than that of a big lift. And for those of you wanting that BIG lift, they have complete kits that provide maximum lift and aggressive style. So whether you want a little or a lot, "Just don't lift it … ReadyLift it!"

Part Type

Suspension Leveling & Lift Kits

Data: v4.2 - Upd: 2026-09-29 18:23:57

Specifications

Product Attributes - Brand: ReadyLift Suspension
Product Attributes - Manufacturer's Part Number: 44-39615
Product Attributes - Part Type: Suspension Leveling & Lift Kits
Product Attributes - Product Line: ReadyLift Suspension Lift Kits
Product Attributes - UPC: 194933301935
Product Attributes - Lift Style: Suspension Lift Kit
Product Attributes - Primary Front Lift Component: Strut extension
Product Attributes - Primary Rear Lift Component: Leaf spring block
Product Attributes - Front Shocks/Struts Included: No
Product Attributes - Rear Shocks/Struts Included: No
Product Attributes - Brake Lines Included: No
Product Attributes - Hardware Included: Yes
Product Attributes - FMVSS 126 Certification: No
Product Attributes - Quantity: Sold as a kit.
Product Attributes - Notes: Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Reference Information

Brand Name/s	Readylift Suspension
StreetFX SKU	rls44-39615
SFX Item ID	5009043
Supplier Item Code	5009043
Manufacturer SKU	44-39615
Manufacturer UPC	194933301935

Compatibility

Application Data

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	5.3L/325
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	5.3L/325
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	5.3L/325
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2020
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2020
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	CHEVROLET
Model	SILVERADO 1500
Submodel	HIGH COUNTRY
Beginning Year	2020
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	5.3L/325
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	5.3L/325
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	5.3L/325
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2019
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2020
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2020
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI
Beginning Year	2020
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI ULTIMATE
Beginning Year	2022
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI ULTIMATE
Beginning Year	2022
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI ULTIMATE
Beginning Year	2022
Ending Year	2022
Engine Type	L6
Engine Size	3.0L/183
Engine Family	Duramax diesel inline 6-cylinder
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI ULTIMATE
Beginning Year	2022
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Crew Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI ULTIMATE
Beginning Year	2022
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Extended Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

Make	GMC
Model	SIERRA 1500
Submodel	DENALI ULTIMATE
Beginning Year	2022
Ending Year	2022
Engine Type	V8
Engine Size	6.2L/376
Engine Family	Chevy small block Gen V
Drivetrain	4WD
Amount of Lift Front	6.000 in.
Amount of Lift Rear	6.000 in.
Body Style	Standard Cab Pickup
Front Suspension	Independent front suspension
Number of Lugs	6
Maximum Tire Height (in.)	35 in.
Maximum Tire Width (in.)(application)	12.5 in.
Recommended Wheel Width (in.)	9.00 in.
Recommended Wheel Backspace (in.)	5.000 in.
Application Notes	Use of Auto 4 Hi feature not recommended. Only compatible with Adaptive Ride Control suspension vehicles. Not compatible with mono-leaf springs.

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ReadyLift Suspension Lift Kits 44-39615 Kit, Front and Rear, 6 in. Lift, Chevy, GMC, Kit

ReadyLift Suspension Lift Kits 44-39615 Kit, Front and Rear, 6 in. Lift, Chevy, GMC, Kit

Description

Part Type

Specifications

Reference Information

Compatibility

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