2019-2024 GMC/Chevy Sierra/Silverado 1500 4" SST2.1 Premium Suspension System
This isn’t just an upgrade — it’s a transformation. Get the best in performance, durability, and versatility with ReadyLIFT’s 4” SST2.1 Suspension System. Don’t just lift your truck—elevate your driving experience. Get yours today and experience what true performance feels like.
Features and Benefits:
· 4” front lift with a 2.25” rear blocks. (Trail Boss and AT4 Rear Differ due to larger rear factory block)
· Trail Boss and AT4 front heights over stock are 2"; the rear differ due to a larger rear factory block.
· 20x9 0 offset 295/55-R20 - 2025 GMC & 2025 Chevy Max tire size
· DOM tubular steel Upper Control Arms with market-best heavy-duty high-angle proprietary ball joint.
· Unmatched curb-appeal and rugged mid-size truck capability delivered in an affordable yet innovative Smart Suspension Technology “no-cut” lift kit.
· “High-Value Performance” is the driving force behind our new vehicle-specific Falcon shocks.
· Falcon shock absorber systems are tuned for comfort with predictive handling, control, and stability on-road and offroad.
· Rear adjustable 3-position Falcon 2.1 shocks tune for daily, sport, or work duties.
· Vehicle-specific performance-tuned Falcon 2.1 dampers on all four corners.
- Adjustable Suspension for Any Situation
- More Strength, More Control
- Built with heavy-duty DOM tubular steel upper control arms featuring high-angle proprietary ball joints, this kit provides superior articulation, enhanced durability, and extended component life—something generic lift kits just can’t match.
- Larger Wheels, Bigger Presence
- Say goodbye to restrictive stock setups. This lift kit opens up 295/65R20 (Chevy) and 295/55R20 (GMC & Chevy) tire fitments, giving your truck the aggressive stance and unstoppable ground clearance it was born to have.
- Smart Suspension Technology
- Unlike traditional cut-and-weld lift kits, our no-cut design preserves your factory ride characteristics while unlocking superior off-road capability and a bold new look.
- Note:
- · Works on AT4 and TrailBoss but lift heights over stock are 2".
- · Use of Auto 4 Hi feature is not recommended.
- · Have not tested on ZR2 and AT4X.
- · Not compatible for 2019 classic body LD, Limited or Super Cruise.
- · Single Cab configuration has not been validated for fitment & drivability by ReadyLIFT.
- · Vehicles with ARC would need an aftermarket bypass product to work. ReadyLIFT does not support this function.
- · Vehicles with Mono-leaf rear springs require 67-39530UB. Before ordering a ReadyLIFT GM1500 Lift Kit, please check the rear leaf spring for kit compatibility.
- Easily switch between Sport, Moderate Tow/Haul, and Heavy Tow/Haul with our 3-position Fast-Adjust Falcon 2.1 Shocks, ensuring your ride is optimized for whatever the road (or lack of it) throws at you.
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 |
| Color |
Black, Black |
| Country of Origin (Primary) |
US |
| Fitment |
Direct Fitment, Direct Fitment |
| Front Lift Component |
Strurt, Strurt |
| Front Shocks |
Falcon 2.1 Coil Strut, Falcon 2.1 Coil Strut |
| Front or Rear |
Front and Rear, Front and Rear |
| GTIN |
00194933366477 |
| 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. |
| Material |
Steel, Steel |
| Max Tire Size |
39 Inch, 39 Inch |
| NAFTA Preference Criterion Code |
B |
| Rear Lift Component |
Block and U-bolt, Block and U-bolt |
| Rear Lift Height |
2.5 Inches, 2.5 Inches |
| Rear Shocks |
Falcon Tow Haul 2.1, Falcon Tow Haul 2.1 |
| SDR Required Flag |
N |
| Shocks Included |
Yes |
