Your Truck Deserves the Best—Not Just Another Lift Kit

Upgrade your 2019-2024 GMC Sierra or Chevy Silverado 1500 with the ultimate suspension system engineered to outperform and outlast the competition. ReadyLIFT's all-new 4" SST2.1 Lift Kit doesn't just raise your truck—it redefines what's possible in ride quality, strength, and capability.

Game-Changing Falcon 2.1 Series Shocks

At the core of this industry-leading system are our all-new Falcon 2.1 Series front struts and rear shocks—a game-changer in suspension technology. Unlike standard lift kits that compromise ride quality, the Falcon Performance Shocks deliver unmatched comfort, control, handling, and design—whether you're cruising the highway, conquering the trails, or hauling serious weight.

Key Features

• 4" Front Lift / 2.25" Rear Blocks: Aggressive stance with level ride height (Trail Boss and AT4 differ due to larger factory blocks)
• Adjustable 3-Position Falcon 2.1 Rear Shocks: Easily switch between Sport, Moderate Tow/Haul, and Heavy Tow/Haul modes
• Vehicle-Specific Performance Tuning: Falcon 2.1 dampers on all four corners tuned for comfort with predictive handling
• DOM Tubular Steel Upper Control Arms: Heavy-duty construction with market-best high-angle proprietary ball joints
• Superior Articulation: Enhanced durability and extended component life vs. generic lift kits
• Larger Tire Fitment: Accommodates 295/65R20 (Chevy) and 295/55R20 (GMC & Chevy) tires on 20x9 wheels with 0 offset
• Smart Suspension Technology: No-cut design preserves factory ride characteristics while unlocking superior off-road capability
• Unmatched Curb Appeal: Rugged capability delivered in an affordable yet innovative package

Adjustable Suspension for Any Situation

The 3-position Fast-Adjust Falcon 2.1 Shocks ensure your ride is optimized for whatever the road (or lack of it) throws at you. Switch between Sport mode for spirited driving, Moderate Tow/Haul for everyday work, or Heavy Tow/Haul when you're pulling serious weight.

Compatibility Notes

• Works on AT4 and Trail Boss (lift heights over stock are 2" due to factory configuration)
• Not compatible with 2019 classic body LD, Limited, or Super Cruise
• Not tested on ZR2 and AT4X models
• Single Cab configuration has not been validated for fitment
• Vehicles with ARC require aftermarket bypass product (not supported by ReadyLIFT)
• Vehicles with mono-leaf rear springs require kit 67-39530UB - check compatibility before ordering
• Use of Auto 4 Hi feature is not recommended

What's Included

Complete suspension system with Falcon 2.1 front struts, adjustable Falcon 2.1 rear shocks, DOM tubular steel upper control arms with proprietary ball joints, rear lift blocks, and all necessary hardware for installation.

Note: Professional installation recommended. LTL freight shipping required.

Specifications: 4" front lift, 2.25" rear lift, fits 2019-2024 GMC Sierra/Chevy Silverado 1500, SKU: 62-39440