2025 GM 1500 6" Big Lift Kit w/ ARC (44-35615)

The ReadyLIFT 6-inch Big Lift Kit is engineered specifically for the new 2025 Chevy Silverado High Country and GMC Sierra 1500 Denali trucks equipped with Adaptive Ride Control (ARC). This kit delivers incredible ride quality and superior handling performance while fully retaining the operation of the factory ARC system. Utilizing robust construction, including boxed steel cross members and a full-width front skid plate constructed of 3/16-inch plate steel, the kit is proven through extensive testing to make these GM 1500 trucks ride better than stock.

Features

• Delivers 6 inches of front and 5 inches of rear suspension lift.
• Retains full functional use of the factory Adaptive Ride Control (ARC) system.
• Maintains the factory ride and handling characteristics.
• Utilizes heavy-duty cast iron lift knuckles engineered to retain factory geometry.
• Features heavy-duty angled and offset top mount strut extensions and rear shock extensions.
• Comes with anti-torsion boxed and gusseted plate steel differential drop brackets.
• Includes fabricated steel 5-inch rear lift blocks with integrated bump stop landings.
• Backed by the ReadyGuard Powertrain Warranty.

Notes

• Use of the Auto 4 Hi feature is not recommended.
• Vehicle alignment and headlamp aim must be checked and adjusted after product installation.
• If the vehicle is equipped with Advanced Driver Assistance Systems (ADAS), these systems may require recalibration.
• Estimated installation time is 10 hours plus or minus 1 hour, excluding alignment and wheel/tire assembly.

Compatibility Notes

• Only compatible with vehicles equipped with Adaptive Ride Control (ARC) suspension.
• Not compatible with vehicles equipped with rear composite mono-leaf springs; only works with traditional steel leaf springs.
• Single Cab configuration fitment and drivability has not been validated.

Tire Fitment

• Recommended maximum tire with no trimming is 35x12.50 on a 20x9 wheel with 0 offset.
• With trimming, fitment is possible for up to 35x12.50 or 325/60R20 tires on a 20x10 wheel with -18 offset.
• Trimming requirements include the front valance, front felt liner edge, rear felt liner edge, and front-rear well edge mud flap.

Specs

• Lift Height: 6 inches front / 5 inches rear.
  
• Cross Member Material: 3/16-inch plate steel.
  
• Differential Drop Material: 1/4-inch boxed plate steel.
  
• Kit Contents: Front/Rear Cross Members, Front Skid Plate, Lift Knuckles, Strut Extensions, Rear Shock Extensions, Differential Drop Brackets, Sway Bar Drop Brackets, 5-inch Fabricated Rear Blocks, and installation hardware.