2020-2024 GM HD 6" MAX 2.1 Lift Kit w/ Falcon Shocks (42-30640)

The ReadyLIFT 6-inch MAX2.1 Suspension System is a premium lift kit for 2020-2024 Chevy Silverado and GMC Sierra 2500/3500 HD trucks. This system is designed to improve stance, performance, and capability, and includes everything necessary to clear larger wheels and tires. Powered by vehicle-specific, performance-tuned Falcon 2.1 monotube dampers on all four corners, these lift kits provide a better-than-factory feel. The easy-to-use 3-position Fast-Adjust settings on the shocks (Sport/daily, Moderate Tow/Haul, and Heavy Tow/Haul) make the system ideal for versatile use, from daily driving to heavy-duty tow/haul duties.

Features

• Delivers 6 inches of lift.
• Includes four vehicle-specific performance-tuned Falcon 2.1 monotube dampers.
• Features heavy-duty fabricated steel components utilizing 3/16-inch and 1/4-inch steel plate.
• Comes with laser-cut, CNC formed heavy-duty front and rear drop crossmembers.
• Includes a full-coverage differential skid plate constructed from 3/16-inch steel plate.
• Utilizes new cast iron OE-style knuckles with the perfect geometry built-in.
• Includes new forged torsion keys and taller cast style rear lift blocks.
• New torsion bar relocation brackets eliminate the traditional lowering of the torsion bars, improving ground clearance.
• Includes crucial differential drop brackets and CV axle spacers.
• The Falcon 2.1 shocks offer improved dynamic roll control and low-speed damping.

Notes

• Some GM HD trucks equipped with a Tow Package may require custom-length U-bolts, which must be purchased separately.
• Vehicle alignment, headlamp aim, and Advanced Driver Assistance Systems (ADAS) must be checked and adjusted after product installation.

Compatibility Notes

• Fits 2020-2024 Chevy Silverado and GMC Sierra 2500/3500 HD trucks.
• Does not work with AT4X or ZR2 models.
• The kit can be installed on a dually model with the overload spring, but may require longer U-bolts.
• The Single Cab configuration has not been validated for fitment and drivability by ReadyLIFT.

Tire Fitment

• Maximum tire diameter is 37 inches.
• Clears up to 37x12.50 tires on a 20x9-inch wheel with 0 offset for no rub.

Specs

• Lift Height: 6 inches.
  
• Shock Type: Falcon 2.1 Monotube Dampers (4 shocks).
  
• Crossmember Material: 3/16-inch and 1/4-inch fabricated steel.
  
• Skid Plate Material: 3/16-inch steel plate.
  
• Kit Contents: Crossmembers, Cast Iron Knuckles, Falcon 2.1 Shocks, Forged Torsion Keys, Torsion Bar Brackets, Differential Drop Brackets, CV Axle Spacers, Cast Rear Lift Blocks, Sway Bar End Links, Bump Stop Extensions, Skid Plate, and hardware.