ReadyLift 66-3921 - Leveling Kits

Description

ReadyLIFT customers have asked for it and we have delivered. In fall of 2018 we announced our new leveling and SST lift kit offerings for the all-new GM 1500 trucks. We specifically did not include the factory lift kit-equipped GMC AT4 and Chevy Silverado Trail Boss. The AT4/Trail Boss are factory equipped with a 2" front lift. This front lift includes a longer front shock/strut assembly. When combining a traditional leveling kit on these factory lifted trucks, several issues present themselves including binding problems with the factory control arm ball joint and contact concerns with the lower strut/CV axle assembly. The ReadyLIFT 66-3921 1.75" leveling kit is similar to our popular 66-3086 leveling kit for pre-2019 trucks. The 66-3921 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. Note: AT4 and Trail Boss do not fit the same size tire. This is due to the difference in front fender opening design. NOTE:     Not compatible with Sierra AT4X or Silverado ZR2 Edition. 66-3921 Leveling Kit: AT4 - Max tire 275/60-20, 20x9 0 offset wheel Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel

2019-2026 GMC AT4 And Chevy Trail Boss - 1.75'' Leveling Kit

Specifications

BrandReadyLift
Part Number66-3921
FitmentDirect Fitment
Front Lift ComponentSpacer
Front Lift Height1.75 Inches
Front or RearFront
Install DifficultyDifficult Requires Professional Installation
Installation TimeAbout 4 hours
Max Tire Size295
Weight25 lbs

Vehicle Fitment

Year(s)MakeModelSubmodel
2019-2026ChevroletSilverado 1500LT Trail Boss
2019-2026GMCSierra 1500AT4
2022GMCSierra 1500 LimitedAT4

Own this? Tell other truck owners how it fits and holds up. Write the first product review

ReadyLift P/N 66-3921

Leveling Kits

$529.95

ⓘ
Check if this fits your vehicle Select your vehicle

In Stock
28 from our supplier network

Free pickup at an H&H store Free — on the shelf at 1 store
Installed at your local H&H store. Added to your order as its own line.
Ships Fast
Free store pickupReady at your local H&H
22 storesAcross the Southeast
Family-ownedServing trucks since 1987
Professional installationAdd it to your order for $640.00
Fitment guaranteeIf it doesn't fit, no restocking fee Details
Price matchFound it cheaper? Tell us before you buy Details
Warranty handled hereClaim it at the store, not by mail Details
4.8 out of 5 stars, 5,735 Google store reviews. These rate our stores, not this product. Read the reviews.
4.8
5,735 reviews
Store reviews on Google

Rated 4.8 across 24 stores

Every review below is a verified Google review of an H&H store — written by real customers about the people who sold, fitted and stood behind their gear.

Gary Holtzclaw
Oxford · 24 hours ago

Bedliner installed, in and out less than 20 minutes

Don Traylor
Jonesboro · 1 day ago

Brian was so very professional and knowledgeable of the job he performed!!!

Ryan Spikes
Lilburn · 2 days ago

I purchased a roll up cover that came damaged from the factory. Jim was able to kindly replace my broken part with another one. Exceptional customer service.

Zachary Brooks
Marietta · 3 days ago

Great service as always. Needed something quickly, the store had it in stock and was able to pickup within minutes. Justin was helpful and very accommodating. Highly recommend!

Allen
Gainesville · 3 days ago

Just had Arcane Warrior roof rack installed. Unbelievably quick and convenient service. Blake and Garrett were readily available and exceptionally personable. Highly recommend them for any and all truck accessory recommendations, provisions and installations!

Michael Burgess
Cumming · 4 days ago

Good pricing, fast service. Quality products.

Ike Newton
Trussville · 4 days ago

Good experience. If you need truck accessories, these are the guys.

Eric Cohen
Madison · 4 days ago

⭐️⭐️⭐️⭐️⭐️ WOW – That’s How You Stand Behind Your Work H&H installed my airbags last year, and recently I ran into an issue where they stopped working. From the very first call, they were incredibly helpful and patient, walking me through troubleshooting over the phone trying to save me a trip. When we couldn’t get it resolved, I called first thing Monday morning and they had me scheduled right away. They got the truck in, diagnosed the issue, and replaced the parts — completely under warranty — no hassle, no excuses. A couple hours later I was back on the road. That’s rare service these days. Professional. Honest. Stand-up guys who truly stand behind their work. H&H is hands down the place to go for all your truck needs. 💪

John Nickell
Pensacola · 4 days ago

Very knowledgeable, great selection and fast install .

Reviews of H&H Truck & Outdoor stores, sourced from Google. They rate our stores and service, not this individual product.

Complete the job

Nitto Ridge GrapplerNittoNitto Ridge GrapplerCall for pricing · 106 optionsToyo Open Country A/T 3ToyoToyo Open Country A/T 3Call for pricing · 165 options

Popular with the Chevrolet Silverado 1500

CamLocker S71LPRLMB - Standard Crossover Tool Box, Matte Black, AluminumTool BoxCamLocker S71LPRLMB - Standard Crossover Tool Box, Matte Black, AluminumGWCM-S71LPRLMB$1,004.00 UnderCover UX12022 - Ultra Flex, 5'10" Bed, BlackHard Folding Tonneau CoverUnderCover UX12022 - Ultra Flex, 5'10" Bed, BlackBKFX-UX12022$1,199.99 Big Country 104870 - Fusion Series, Black, 4" FusionNerf Bars & Step BarsBig Country 104870 - Fusion Series, Black, 4" FusionCNNX-104870$118.68 WeatherTech 4414361IM - FloorLiner HP, Black, MoldedFloor LinerWeatherTech 4414361IM - FloorLiner HP, Black, MoldedBHTJ-4414361IM$155.95