6'' Suspension System W/ Falcon 3.3 Shocks And Fab UCA Arms

Features:

• Provides 6 inches of front lift height
• Fits 2020–2025 Silverado and Sierra 2500HD/3500HD
• Includes Falcon 3.3 Fast Adjust shocks
• Dual-knob shock adjustability for compression control
• Clears up to 37-inch tires with 20x9 wheels
• 4130 chromoly steel upper control arms
• Heavy-duty 3/16" and 1/4" steel components
• Includes full-width front differential skid plate
• Maintains proper steering and suspension geometry
• Laser-cut and CNC-formed front/rear crossmembers
• Reservoir shocks provide consistent performance
• Ideal for towing, off-roading, and daily driving

Take Your HD Truck To The Next Level

If you're ready to give your Silverado or Sierra HD a serious upgrade, the ReadyLift 42-30660 6" Suspension System with Falcon 3.3 Shocks delivers everything you need and more. This isn’t just about looking good in the driveway, this is about unlocking true performance whether you're towing heavy loads, heading off the beaten path, or simply demanding more from your truck every day. With the ability to clear 37-inch tires on a 20x9 wheel, you get that aggressive stance without compromising drivability. The ride quality stays smooth and controlled thanks to Falcon’s 3.3 Fast Adjust shocks, giving you on-the-fly control over compression and rebound for whatever the road, or trail, throws at you. Combine that with bulletproof upper control arms, a full-coverage skid plate, and heavy-duty construction throughout, and you’ve got a system that’s built to keep up with your lifestyle. Whether you're working, playing, or somewhere in between, this lift kit gives your truck the clearance, comfort, and confidence it deserves. It's more than just a lift, it’s the start of your truck’s transformation.

Engineered To Handle Everything You Demand

The ReadyLift 6" MAX3.3 system isn’t just a stack of parts, it’s a fully engineered suspension solution for 2020–2025 GM 2500HD and 3500HD trucks. It’s built around a foundation of laser-cut and CNC-formed steel crossmembers, a 3/16-inch steel differential skid plate, and extreme-duty chromoly upper control arms that improve strength and ball joint angles. The included Falcon 3.3 piggyback shocks are highly adjustable, offering 3-position compression control and an 8-point micro-adjust dial for dialed-in rebound. These aren’t off-the-shelf shocks, they’re purpose-built to match the weight, size, and demands of your heavy-duty truck, giving you greater confidence whether you’re towing, hauling, or carving up rough trails. With improved damping and reduced fade across all temperature ranges, you can count on performance no matter where you take your rig. The system also preserves proper geometry and alignment, reducing long-term wear on tires and components. From top to bottom, this lift is precision-engineered for serious truck owners who refuse to compromise on capability or ride quality.

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

Notes:

• Fits 2020–2025 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD
• Designed as a complete 6 inch suspension system
• Single cab fitment has not been validated by ReadyLift
• Clears up to 37x12.50 tires on 20x9 wheels with 0 offset
• Includes Falcon 3.3 Fast Adjust piggyback shocks
• Shock settings allow tuning for towing, daily driving, or off-road use
• Some trucks with factory tow packages may need custom U-bolts
• Heavy-duty steel components used throughout the system
• Upper control arms are fabricated from 4130 chromoly steel
• Professional alignment required after installation
• Headlamp aim and ADAS systems may require recalibration
• Designed to maintain proper steering and suspension geometry

Install Instructions