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ReadyLift Suspension Leveling Kit 66-3921 product image 1
ReadyLift Suspension Leveling Kit 66-3921 product image 2

ReadyLift 1-3/4 Inch Lift Suspension Leveling Kit 66-3921

SKU: 66-3921

$529.95

ReadyLift 1-3/4 Inch Lift Suspension Leveling Kit 66-3921

Easy To Install
ReadyLift 1-3/4 Inch Lift Suspension Leveling Kit 66-3921

Limited 1 Year Warranty
ReadyLift 1-3/4 Inch Lift Suspension Leveling Kit 66-3921

Maintenance Free Bushings
ReadyLift 1-3/4 Inch Lift Suspension Leveling Kit 66-3921

DOM Tube Steel Upper Control Arms
ReadyLift 1-3/4 Inch Lift Suspension Leveling Kit 66-3921

CNC Machined Aircraft Grade Billet Aluminum Top And Bottom Strut Spacers

Verified U.S. Supplier

Fitment Data Included

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In stock 95

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ReadyLift 1-3/4 Inch Lift Suspension Leveling Kit 66-3921

$529.95

$529.95

1-3/4 Inch Lift

Lift Height

Strut Assembly Spacer

Type

Aluminum

Material

Product Description

The leveling kit provides required amount of lift without causing conflict with the factory strut geometry and clearances. In light of the factory upper control arm's lack of dynamic range when the AT4/Trail Boss truck is further lifted, this leveling kit includes our popular tubular upper control arms with corrected ball joint cup angles, heavy-duty replaceable ball joints and out new Terrain Control Technology (TCT) maintenance-free pivot bushings with side-biter washers to improve alignment retention.

Specifications

Lift Height
1-3/4 Inch Lift
Type
Strut Assembly Spacer
Maximum Tire Size
34 x 12.00
Includes Shock/Struts
Yes
Minimum Wheel Diameter
20
Wheel Backspacing (IN)
5
Wheel Offset (MM)
0
Color
Black
Material
Aluminum
Estimated Install Time (Hours)
2

Fitment / Application

2019 Chevrolet Silverado 1500- New Model LT Trail Boss
2019 Chevrolet Silverado 1500- New Model Custom Trail Boss
2019 GMC Sierra 1500- New Model AT4
2020-2021, 2023-2025 Chevrolet Silverado 1500 L4; 2.7L/2720; GAS; Turbocharged; DI; Custom Trail Boss
2020-2021, 2023-2025 Chevrolet Silverado 1500 V8; 6.2L/6162; GAS; DI; LT Trail Boss
2020-2021 Chevrolet Silverado 1500 V6; 4.3L/262; GAS; DI; LT Trail Boss
2020-2021, 2023-2025 Chevrolet Silverado 1500 L4; 2.7L/2720; GAS; Turbocharged; DI; LT Trail Boss
2020-2021 Chevrolet Silverado 1500 V6; 4.3L/262; GAS; DI; Custom Trail Boss
2020-2021 Chevrolet Silverado 1500 V8; 5.3L/5328; GAS; DI; VIN D; LT Trail Boss
2020-2021 Chevrolet Silverado 1500 V8; 5.3L/5328; GAS; DI; VIN F; LT Trail Boss
2020-2021 Chevrolet Silverado 1500 V8; 5.3L/5328; GAS; DI; VIN D; Custom Trail Boss
2020-2021 Chevrolet Silverado 1500 V8; 5.3L/5328; GAS; DI; VIN F; Custom Trail Boss
2020-2021, 2023-2025 Chevrolet Silverado 1500 V8; 6.2L/6162; GAS; DI; Custom Trail Boss
2020-2021 GMC Sierra 1500 V8; 5.3L/5328; GAS; DI; VIN F; AT4
2020-2021, 2023-2025 GMC Sierra 1500 L6; 3.0L/2993; DIESEL; Turbocharged; DI; AT4
2020-2021 GMC Sierra 1500 V6; 4.3L/262; GAS; DI; AT4
2020-2021 GMC Sierra 1500 V8; 5.3L/5328; GAS; DI; VIN D; AT4
2020-2021, 2023-2025 GMC Sierra 1500 V8; 6.2L/6162; GAS; DI; AT4
2020-2021, 2023-2025 GMC Sierra 1500 L4; 2.7L/2720; GAS; Turbocharged; DI; AT4
2022 Chevrolet Silverado 1500 LTD- Old Model V8; 6.2L/6162; GAS; DI; Custom Trail Boss
2022 Chevrolet Silverado 1500 LTD- Old Model L4; 2.7L/2720; GAS; Turbocharged; DI; LT Trail Boss
2022 Chevrolet Silverado 1500 LTD- Old Model L4; 2.7L/2720; GAS; Turbocharged; DI; Custom Trail Boss
2022 Chevrolet Silverado 1500 LTD- Old Model V8; 5.3L/5328; GAS; DI; VIN F; Custom Trail Boss
2022 Chevrolet Silverado 1500 LTD- Old Model V8; 5.3L/5328; GAS; DI; VIN D; LT Trail Boss
2022 Chevrolet Silverado 1500 LTD- Old Model V8; 6.2L/6162; GAS; DI; LT Trail Boss
2022 Chevrolet Silverado 1500 LTD- Old Model V8; 5.3L/5328; GAS; DI; VIN F; LT Trail Boss
2022 Chevrolet Silverado 1500 LTD- Old Model V8; 5.3L/5328; GAS; DI; VIN D; Custom Trail Boss
2022 Chevrolet Silverado 1500- New Model L4; 2.7L/2720; GAS; Turbocharged; DI; Custom Trail Boss
2022 Chevrolet Silverado 1500- New Model V8; 6.2L/6162; GAS; DI; LT Trail Boss
2022 Chevrolet Silverado 1500- New Model L6; 3.0L/2993; DIESEL; Turbocharged; DI; Custom Trail Boss
2022 Chevrolet Silverado 1500- New Model V8; 5.3L/5328; GAS; DI; Custom Trail Boss
2022 Chevrolet Silverado 1500- New Model L4; 2.7L/2720; GAS; Turbocharged; DI; LT Trail Boss
2022 Chevrolet Silverado 1500- New Model V8; 5.3L/5328; GAS; DI; LT Trail Boss
2022 Chevrolet Silverado 1500- New Model V8; 6.2L/6162; GAS; DI; Custom Trail Boss
2022 Chevrolet Silverado 1500- New Model L6; 3.0L/2993; DIESEL; Turbocharged; DI; LT Trail Boss
2022 GMC Sierra 1500 Limited- Old Model AT4
2022 GMC Sierra 1500- New Model L4; 2.7L/2720; GAS; Turbocharged; DI; AT4
2022 GMC Sierra 1500- New Model L4; 2.7L/2720; GAS; Turbocharged; DI; AT4X
2022 GMC Sierra 1500- New Model L6; 3.0L/2993; DIESEL; Turbocharged; DI; AT4
2022 GMC Sierra 1500- New Model V8; 5.3L/5328; GAS; DI; AT4X
2022 GMC Sierra 1500- New Model V8; 6.2L/6162; GAS; DI; AT4
2022 GMC Sierra 1500- New Model V8; 5.3L/5328; GAS; DI; AT4
2022 GMC Sierra 1500- New Model V8; 6.2L/6162; GAS; DI; AT4X
2022 GMC Sierra 1500- New Model L6; 3.0L/2993; DIESEL; Turbocharged; DI; AT4X
2023-2025 Chevrolet Silverado 1500 L6; 3.0L/2993; DIESEL; Turbocharged; DI; LT Trail Boss
2023-2025 Chevrolet Silverado 1500 V8; 5.3L/5328; GAS; DI; LT Trail Boss
2023-2025 Chevrolet Silverado 1500 L6; 3.0L/2993; DIESEL; Turbocharged; DI; Custom Trail Boss
2023-2025 Chevrolet Silverado 1500 V8; 5.3L/5328; GAS; DI; Custom Trail Boss
2023-2025 GMC Sierra 1500 V8; 5.3L/5328; GAS; DI; AT4X
2023-2025 GMC Sierra 1500 V8; 6.2L/6162; GAS; DI; AT4X
2023-2025 GMC Sierra 1500 V8; 5.3L/5328; GAS; DI; AT4
2023-2025 GMC Sierra 1500 L4; 2.7L/2720; GAS; Turbocharged; DI; AT4X
2024-2025 GMC Sierra 1500 L6; 3.0L/2993; DIESEL; Turbocharged; DI; AT4X

Installation & Documents



Installation Guide