2025 GM 1500 8" MAX3.3 Suspension System w/ Falcon 3.3 Adj Shocks (42-35840)

The ReadyLIFT 8-inch MAX3.3 Premium Suspension System for the 2025 Chevy Silverado and GMC Sierra 1500 4WD is the pinnacle of the MAX-series lineup. Engineered with Falcon 3.3 Fast Adjust dampers, this system is designed for enthusiasts who want an aggressive 8-inch lift without sacrificing the comfort of a daily driver. The dual-knob tuning allows you to switch between soft highway cruising and firm off-road control in seconds, providing a "better-than-factory" feel even with massive 37-inch tires.

Features

• Delivers a full 8 inches of lift for increased ground clearance and a commanding presence.
• Includes Falcon 3.3 Fast Adjust Coilovers and Rear Shocks with dual-knob tuning.
• Features a 3-position Fast Adjust Knob (Soft, Custom, Firm) for immediate compression changes.
• Equipped with an 8-position Micro Adjust Dial for precise rebound damping control.
• Includes heavy-duty DOM tubular steel upper control arms (UCAs) with high-angle proprietary ball joints for superior articulation.
• Features boxed steel front and rear crossmembers and 1/4-inch plate steel differential drop brackets for maximum strength.
• Comes with a full-width 3/16-inch steel front skid plate for comprehensive underbody protection.
• Utilizes 5-inch fabricated rear lift blocks with integrated bump stop landings and an Add-A-Leaf to maintain proper height and rake.
• Maintains factory turning radius and ride comfort while elevating overall performance.

Notes

• Use of the "Auto 4 Hi" feature is not recommended after installation.
• Vehicle alignment, headlamp aim, and Advanced Driver Assistance Systems (ADAS) must be checked and adjusted following installation.
• Trimming of the front valance, inner fender liners, and mud flaps may be required for larger tire/wheel combinations.

Compatibility Notes

• If installed on AT4 or Trail Boss models, the net lift will be 6 inches over factory stock height.
• If installed on AT4X or ZR2 models, the net lift will be 6 inches over factory stock height and requires removal of factory Multimatic shocks.
• Not compatible with Diesel models (due to lack of oil line relocation bracket).
• Not compatible with models equipped with Adaptive Ride Control (ARC).
• Not compatible with rear mono-leaf springs or the Super Cruise feature.
• Single Cab configurations have not been validated for fitment or drivability.

Tire Fitment

• Recommended (No Trimming): 37x12.50 tires on 20x9 wheels with 0 offset.
• Maximum Fitment (With Trimming): 37x12.50 tires on 20x10 wheels with -18 offset.

Shock Specs

• Shock Type: Falcon 3.3 Fast Adjust Front Remote Reservoir Coilovers and Rear Piggyback Shocks.
• Construction: Hard-anodized 6061-T6 aluminum bodies for superior corrosion and impact resistance.
• Internal Technology: Volume Optimized Damping (VOD) piston technology for improved control and bottom-out resistance.
• Fluid: Red Line High VI shock oil, maintaining consistent performance from -50°F to 450°F.
• Adjustability: Independent 3-position Fast Adjust Knob and 8-position Micro Adjust Dial.

Specs

• Lift Height: 8 inches.
• UCA Material: Heavy-duty DOM tubular steel.
• Crossmember Material: Boxed steel and 1/4-inch plate steel components.
• Kit Contents: Front Falcon 3.3 Remote Resi Coilovers, Rear Falcon 3.3 Piggyback Shocks, DOM Tubular UCAs, Front/Rear Boxed Steel Crossmembers, Full-width Front Skid Plate, Differential Drop Brackets, CV Axle Spacers, 5-inch Rear Lift Blocks, Add-A-Leaf, Sway Bar Brackets, Brake Line Brackets, Bump Stop Extensions, and all necessary hardware.