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66-3921 | ReadyLift 1.75 Inch Front Leveling Kit With Upper Control Arms (2019-2023 Silverado, Sierra 1500 AT4, Trail Boss)

2019-2023 Chevrolet Silverado 1500 Trail Boss 4WD | 2019-2023 GMC Sierra 1500 AT4 4WD

66-3921
Pricing: $649.94
Qty:
Free Ground Shipping | Exclusions Apply*

Description

2019-2023 GMC AT4 AND CHEVY TRAIL BOSS - 1.75'' LEVELING KIT

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.
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

Application List

2019-2023 Chevrolet Silverado 1500 4wd, Trail boss
2019-2023 GMC Sierra 1500 4wd, AT4

Tires & Wheels

Note:
AT4 and Trail Boss do not fit the same size tire.
This is due to the difference in front fender opening design.

AT4
Max tire 275/60-20, 20x9 0 offset wheel

Trail Boss
Max tire 295/65-20, 20x9 0 offset wheel

Details

Categories

Shipping Information

  • Item Requires Shipping
  • 25.0 lbs.
  • W12.0000” x H6.0000” x L16.0000”
  • Free Ground Shipping | Exclusions Apply*