8" 2020-2024 Sierra 2500HD/3500HD GMC MAX 3.3 Lift Kit (w/Falcon 3.3 Monotube Shocks) by ReadyLift

The ReadyLIFT 42-30840 8” MAX 3.3 Suspension Lift Kit with 3.3 Falcon shocks is a performance upgrade for the GMC Sierra 2500/3500 HD trucks. This premium lift kit enhances the vehicle's stance, performance, and capability, accommodating larger wheels and tires. The kit includes vehicle-specific, performance-tuned Falcon dampers on all four corners, providing a ride quality that surpasses factory settings.

The 8” suspension system features front 3.3 Fast Adjust shocks and rear adjustable piggyback shocks, offering exceptional versatility for various terrains and handling preferences. The Fast Adjust Dampers include a dual-knob system for fine-tuning suspension settings, ensuring performance and comfort in diverse conditions. Ideal for city driving, off-road adventures, and heavy-duty hauling, these Falcon Performance Shocks deliver unmatched adaptability. This comprehensive kit features laser-cut, heavy-duty steel cross-members, OE-style knuckles with precise geometry, torsion arm brackets, and taller cast-style rear lift blocks. It includes fabricated steel upper control arms with corrected ball joint angles for improved handling. Torsion bar relocation brackets maintain optimal ground clearance, enhancing the driving experience.

The kit includes differential drop brackets, CV axle spacers, sway bar end links, bump stop extensions, OE-style cast rear lift blocks, and a heavy-duty steel skid plate. The 8" lift kit for GM HD trucks uses robust steel components and supports up to 37x12.50 tires on a 20×9” wheel with a 0 offset. Key features include Xtreme-Duty fabricated 4130 chromoly steel upper control arms and 3.3 Fast Adjust Dampers for extensive adjustability. The 3-Position Fast Adjust Knob offers soft, custom, and firm compression settings, while the 8-Position Micro Adjust Dial provides refined damping. The reservoir design ensures consistent damping across temperature ranges. Built for durability, the kit includes hard-anodized 6061-T6 aluminum shock bodies for impact resistance and increased oil volume. The VOD (Volume Optimized Damping) system minimizes body roll and bottom-out. Red Line high VI shock oil ensures performance across temperatures from -50F to 450F, with anti-wear and lubricity agents for long-lasting reliability.

Features and Benefits:

• 8" lift kit designed for GM HD trucks
• Heavy-duty fabricated steel components made from 3/16″ and 1/4″ steel plate
• Full-coverage differential skid plate constructed from 3/16″ steel plate
• Laser-cut, CNC-formed heavy-duty front and rear drop cross-members
• Accommodates up to 37x12.50 tires on a 20×9” wheel with a 0 offset
• Xtreme-Duty fabricated 4130 chromoly steel upper control arms
• 3.3 Fast Adjust Dampers provide extensive adjustability for specific terrain and handling characteristics with dual adjustment knobs
• 3-Position Fast Adjust Knob for soft, custom, and firm compression settings, with soft mode allowing a partial bypass for a smoother ride
• 8-Position Micro Adjust Dial for refined damping adjustments
• Reservoir design increases the nitrogen-to-oil ratio for consistent damping across wide temperature ranges
• Hard-anodized large bore 6061-T6 aluminum shock body offers impact and corrosion resistance and increased oil volume for consistent performance
• VOD (Volume Optimized Damping) features a digressive linear piston for quicker ramp-up, reducing body roll and increasing damping to prevent bottoming out under extreme conditions
• Red Line high VI shock oil ensures consistent performance across temperatures from -50F to 450F, with added anti-wear and lubricity agents