AT4/Trail Boss Plus 2.0" SST Lift Kit- GM 1500 AT4/Trail Boss 4WD 2019-2023
Last fall 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 69-3920 SST Lift Kit works with the factory 2" front lift. This kit includes a top mount strut spacer along with a pre-load spacer to limit droop and the same premium grade upper control arms now available in our 66-3921 leveling kit. OE style 3" tall cast iron rear lift blocks and rear bump stop extension cups are also included to create a true AT4/Trail Boss-specific bolt-on lift kit that provides 2" of front lift and 1" of rear lift. This new lift kit concept is similar to our successful TRD Pro Plus 2 SST Lift Kit which is also engineered specifically to work with that factory OE suspension lift. Your trust in ReadyLIFT to provide high-quality, precision engineered products is extremely important to us. You can be assured that this all-new SST lift kits are the absolutely most reliable and best performing suspension upgrade option for the AT4/Trail Boss trucks. AT4 - Max tire 305/55-20, 20x9 0 offset wheel Trail Boss - Max tire 295/65-20, 20x9 0 offset wheel NOTE: Use of Auto 4 HI feature not recommended.. NOTE: This GM 1500 kit is NOT COMPATIBLE with vehicles equipped with rear composite mono-leaf springs. The mono-leaf is easily identifiable the U-bolt is round/circular around the top of the leaf spring. This kit only works with vehicle equipped with traditional steel leaf springs identified by square U-bolts. NOTE: Not compatible with Sierra AT4X or Silverado ZR2 Edition.
- 2" SST Lift Kit for 20192023 GM AT4 & Trail Boss models
- Not compatible with Sierra AT4X or Silverado ZR2 Edition
- Front lift combines with factory 2" lift
- CNCmachined billet Aluminum top spacer and preload spacer kit
- Heavyduty control arms with 1ton ball joints
- Maintenancefree pivot bushings
- Includes 3" tall OE style cast iron rear lift blocks
- Comes with new Ubolts
- Max tire size for AT4: 305/5520 on 20x9 0 offset wheel
- Max tire size for Trail Boss: 295/6520 on 20x
- 2"" SST Lift Kit for 2019 2"" SST Lift Kit for 20192023 GM AT4 & Trail Boss models
- CNC CNCmachined billet Aluminum top spacer and preload spacer kit
- Heavy Heavyduty control arms with 1ton ball joints
- Maintenance Maintenancefree pivot bushings
- Comes with new U Comes with new Ubolts
- Max tire size for AT4: 305/55 Max tire size for AT4: 305/5520 on 20x9 0 offset wheel
- Max tire size for Trail Boss: 295/65 Max tire size for Trail Boss: 295/6520 on 20x"
Application Summary:
| Year |
Make/Model |
| 2019-2024 |
Chevrolet Silverado 1500 |
| 2019-2024 |
GMC Sierra 1500 |
| Attributes |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov |
| Country of Origin (Primary) |
US |
| Fitment |
Direct Fitment, Direct Fitment |
| Front Lift Component |
Spacer, Spacer |
| Front Lift Height |
2 Inches, 2 Inches |
| Front or Rear |
Front and Rear, Front and Rear |
| GTIN |
00804879610472 |
| Harmonized Tariff Code (Schedule B) |
8708801600 |
| Hazardous Material Code |
N |
| Install Difficulty |
Difficult Requires Professional Installation, Difficult Requires Professional Installation |
| Installation Time |
5+ Hours, 5+ Hours |
| Life Cycle Status Code |
Available to Order |
| Lift/Drop Height |
2 in. |
| Max Tire Size |
305, 305 |
| NAFTA Preference Criterion Code |
B |
| Rear Lift Component |
Block and U-bolt, Block and U-bolt |
| Rear Lift Height |
1 Inch, 1 Inch |
| SDR Required Flag |
N |
| Shocks Included |
No |
