Leveling Kit | ReadyLift | 1.75 inch | GM

SKU RL-66-3921

ReadyLift 66-3921 1-3/4 inch front leveling kit for the Chevy Silverado 1500 Trailboss and GMC Sierra 1500 AT4 is the fastest, safest, least expensive way to bring the front of your vehicle level with the rear. Allows you to run larger tires. Kit includes 2 CNC machined aircraft-grade billet Aluminum top mount and bottom mount spacers and 2 tubular upper control arms with corrected ball joint cup angles, heavy-duty replaceable ball joints.

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$529.95 Free Ship!

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Product Specifications

Location:Front
Front Lift Height:1.75"
Leveling Kit Type:Strut Spacers
Max Tire Size:33"

Typically ships in 2 to 3 business days.

Product Specs for ReadyLIFT Suspension, Inc. 66-3921

Location:Front
Front Lift Height:1.75"
Leveling Kit Type:Strut Spacers
Max Tire Size:33"
Note:AT4 and Trail Boss do not fit the same size tire. This is due to the difference in front fender opening design.
UPC: 804879610489
MPN: 66-3921

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customer service Our Michigan based experts can help.

1-800-358-4751(toll-free, US & Canada) 1-989-755-0561(international & local) Email

Hours

M-F 7:00AM - 11:00PM EST

ReadyLIFT Suspension, Inc. 66-3921 Details

CNC-machined Billet Aluminum construction
Provides required amount of lift without causing conflict with the factory strut geometry and clearances
Maintenance-free pivot bushings with side-biter washers to improve alignment retention.

Tire and Wheel Fitment

AT4 - Max tire 275/60-20, 20x9 0 offset wheel
Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel
Note: AT4 and Trail Boss do not fit the same size tire. This is due to the difference in front fender opening design.

Vehicle Application Guide for ReadyLIFT Suspension, Inc. 66-3921

The RL-66-3921 Leveling Kit | ReadyLift | 1.75 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.

Chevrolet
GMC

Year	Make	Model	Vehicle Option	Installation Notes
2019	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2019	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2019	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 275/60-20, 20x9 0 offset wheel
2020	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2020	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2020	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2021	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2021	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2021	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2022	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2022	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2022	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2024	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2024	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2025	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2025	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2026	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2026	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2023	Chevrolet	Silverado 1500 Custom Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2023	Chevrolet	Silverado 1500 LT Trail Boss	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2023	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2025	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2024	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.
2026	GMC	Sierra 1500 AT4	Fits 4 Wheel Drive	Max tire 295/65-20, 20x9 0 offset wheel.

Customer Q&A - ReadyLIFT Suspension, Inc. 66-3921

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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.