SKU: 21114668264

1.75 Inch Leveling Kit 2019-2025 Silverado/Sierra AT4 And Trail Boss ReadyLIFT

Sale price$238.48 Regular price$264.98
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

1.75 Inch Leveling Kit 2019-2025 Silverado/Sierra AT4 And Trail Boss ReadyLIFTReadyLIFT 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 Inch front lift. This front lift includes a longer front shock strut assembly. When combining a traditional leveling kit on these factory

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-Inch 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-Inch 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

Features and Benefits:

  • 1.75-Inch front leveling lift
  • Compatible with 2019-2023 GM at4 and Trail Boss models
  • Not compatible with Sierra AT4X or Silverado ZR2 Edition
  • Includes DOM tube steel upper control arms
  • TCT maintenance-free pivot bushings
  • 1-ton ball joints
  • CNC machined aircraftgrade billet Aluminum top and bottom strut spacers
  • AT4 Max tire size: 275/6020
  • AT4 Max wheel size: 20x9 with 0 offset
  • Trail Boss Max tire size: 295/6520
  • Trail Boss Max wheel size: 20x9 with 0 offset
  • At4 at4 Max tire size: 275/6020
  • At4 at4 Max wheel size: 20x9 with 0 offset

Details:

  • Fitment: Direct Fitment
  • Front Lift Component: Spacer
  • Front Lift Height: 1.75 Inch
  • Front or Rear: Front
  • Install Difficulty: Difficult Requires Professional Installation
  • Installation Time: 4 Hours
  • Lift Height: 1.75 Inch
  • Max Tire Size: 295
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 21114668264

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4.8 ★★★★★
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dawn
Lexington, US
★★★★★ 3
still searching for a truly indestructible dog chew toy
Color: Hedgehog
My smallish dog (15 lb Boston terrier) got this chewed up within a half an hour. I didn't notice right away that he was also eating the parts he chewed off. Didn't last a day. Otherwise, quick shipping for a cute toy.
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Reviewed in the United States on June 12, 2026
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Verified Purchase
Mena
Bozeman, US
★★★★★ 5
Good size for my pug!
Color: Dentachew 3 Pk
I love how it’s a good size for my pug it is easy for her to play around with. I had stuffed animals for her to play around with but it looked so silly to watch her play with something that is 10 times as big as her 😂. I had to buy her these toys and she seemed so happy when she first got them. It was so funny and interesting that she had to chew all three toys and decide which one she liked. At first she decided to play with the rope toy and she liked the rope toy, then she got curious with the rubber toys. She has decided that the rubber toys are her favorite and I’ve tried to engage with playing with her with the rope toy. She gets more interactive with the rubber toys! She also looked so relieved while chewing them so that’s a plus!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026
L
Verified Purchase
Lindap
Draper, US
★★★★★ 4
Good for Teething puppies
Color: Teething Stick
After getting my fingers chewed and bitten by my new foster - 8 week old Yorkie , I was desperate to find good teething toys. Fortunately this one arrived quickly. Turned out to be very good for teething puppies! Charlie loves this cooling stick. Once it’s frozen, the cold really seems to soothe his sore gums. The icy part doesn’t stay frozen for long, but it works so well that I bought a second one to keep ready in the freezer while he’s working on the first. Even after it warmed up, he still enjoyed chewing on the soft stuffed part and the tentacles. The product card says not to use it as a chew toy, so supervision is a must, but it held up just fine so far. Overall, this has been a big help during the teething phase — short-lived when frozen, but very effective while it lasts! And worth every penny to save my fingers from being a chew toy.
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Reviewed in the United States on October 7, 2025
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Verified Purchase
Amanda Rogers
Omaha, US
★★★★★ 5
From Puppy Teething to Adult Favorite – 7 Years Later
Color: Teething Stick, Color: Teething Stick
This has been one of the best toys I’ve ever bought! My dog has loved the Pupstages Cool Teething Stick since she was a tiny puppy, and now at 7 years old, it’s still one of her absolute favorites. It’s been amazing for soothing teething when she was little, and now she still enjoys chewing on it and carrying it around. It’s held up surprisingly well over the years, especially considering how much use it’s gotten. I also love that you can cool it for extra relief—it really helped during those puppy stages. If you’re looking for a toy that lasts and actually becomes a long-term favorite, this is definitely it. Highly recommend for both puppies and even older dogs who still love a good chew! 🐶
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Reviewed in the United States on May 1, 2026
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Verified Purchase
Stefne
Bozeman, US
★★★★★ 5
Great for little dogs that like to chew
Color: Hedgehog
Great for my 10 lb chihuahua that loves to chew! Keeps his teeth clean!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026

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