6'' Lift Kit W/ Falcon 2.1 Shocks

Features:

• Fits 2020–2025 GM 2500HD/3500HD 4WD and AT4
• Provides a full 6" inches of lift
• Allows clearance for up to 37 inch tires
• Includes four Falcon 2.1 monotube shocks
• Uses OEM factory torsion keys for simplicity
• Features cast iron OE-style steering knuckles
• Includes laser-cut heavy-duty crossmembers
• Retains factory torsion bar location
• Comes with differential drop brackets and CV spacers
• OE-style cast iron rear lift blocks included
• Heavy-duty skid plate protects underbody components
• Made in the USA with quality materials

Give Your HD Truck The Lift It Deserves

If you want your Silverado or Sierra HD to stand out and perform with confidence, the ReadyLift 6'' Lift Kit with Falcon 2.1 shocks is a solid step up. This system gives you the extra height you need to clear 37-inch tires, while still keeping the ride smooth and the handling tight. Whether you're building a weekend warrior or a daily driver that can handle rough job sites, this kit brings serious presence and capability. The Falcon 2.1 shocks help manage the extra lift without compromising comfort, so your truck stays composed no matter where you're driving. You’ll also get better ground clearance without messing with the factory torsion bar setup, which keeps things cleaner underneath. Every part is made with real-world durability in mind, from the skid plate to the heavy-duty crossmembers. If you’re after a lift that looks great, drives right, and doesn’t cut corners, this one checks all the boxes.

Designed For Strength Geometry And Long Term Performance

The ReadyLift 44-30621 6'' Lift Kit is a complete suspension system built to properly raise 2020–2025 GM 2500HD and 3500HD 4WD trucks, including AT4 models. At its core are heavy-duty laser-cut front and rear crossmembers, matched with OE-style cast iron knuckles that maintain correct steering angles and front-end alignment. Unlike many kits, it retains your factory torsion keys and uses torsion bar relocation brackets to keep the bars in their original position, helping to preserve ground clearance. Falcon 2.1 monotube shocks are included for both front and rear, offering reliable damping control and a smooth ride at lifted height. To protect driveline geometry, the kit comes with differential drop brackets and precision-machined billet aluminum CV axle spacers. Cast iron rear lift blocks with integrated bump stop landings provide extra strength out back, and a full steel skid plate shields vital components underneath. This lift is engineered for proper fitment, durability, and on-road drivability, while still giving your HD truck the stance and capability to handle more.

Fitment: 2020, 2021, 2022, 2023, 2024, 2025 GM Silverado/Sierra 2500HD/3500HD 4WD/AT4

Notes:

• Fits 2020–2025 Silverado and Sierra 2500HD/3500HD 4WD and AT4 models
• Not compatible with AT4X or ZR2 trim levels
• Single cab fitment has not been confirmed by ReadyLift
• Allows for up to 37" tires with proper wheels
• Uses your OEM factory torsion keys for installation
• Some models with tow packages may require custom-length U-bolts
• Professional alignment is required after installation
• Headlamp aim and ADAS systems may need recalibration
• Includes all hardware and brackets necessary for installation
• Some cutting or modifications may be needed during install
• Falcon 2.1 shocks are included for all four corners
• Made in the USA and backed by ReadyLift engineering

Install Instructions