The Fox Factory Race Series 3.0 Internal Bypass shocks designed for the GMC Sierra 1500 is a bolt-on kit that combines cutting-edge technology, including position-sensitive damping, Dual Speed Compression (DSC) adjustment, and high-speed readiness. The patented Internal Bypass technology introduces multiple zones of damping control, ensuring a comfortable and confident ride with increased damping force over rough terrain. These shocks deliver progressive force to manage hard bottom-outs, prevent harsh top-outs, and provide an initial catch for landings. The shock fluid bypasses the main piston through a system of bleed holes in the ride zone, terminating as the shock extends past the ride zone in rebound or compression, directing fluid through the main piston.

Enhancing performance, the Recirculating Reservoir Bridge facilitates a continuous exchange of shock fluid between the finned external reservoir and body, utilizing checked ports to maintain cool temperatures for optimal performance. The 3-inch diameter aluminum bodies are protected from corrosion and wear by Type III anodization. The Dual Speed Compression adjuster lets you fine-tune your vehicle based on load, environment, and driving style.

DSC Adjusters

Each reservoir has a dual-speed compression (DSC) adjuster that allows you to dial in high-speed and low-speed compression settings. With the DSC adjusters, you can swiftly tailor your coilovers to suit different loads, environmental conditions, and your preferred driving style. Adjust is made simply by turning the low or speed dials to your desired settings (10 low-speed settings, 12 high-speed settings). Meanwhile, the high-flow piston ensures stability across various terrains. FOX shocks are meticulously engineered to accommodate multiple activities, allowing you to unlock your truck's full potential on your next adventure.

Features & Benefits:

• 3 inch CNC Machined 6061-T6 Aluminum Body
• Lifts front of vehicle 3 inches (aftermarket upper control arms are required)
• Aluminum body dissipates heat three times faster than steel body
• Excellent ride quality and off-road performance
• Reservoirs include Dual Speed Compression (DSC) Adjusters to fine-tune ride firmness or softness at high and low speeds (10 low-speed settings, 12 high-speed settings)
• Race-developed high-flow piston design
• Clear Anodized Finish
• Coil Springs are application-specific
• 7/8" hard chrome-plated steel shafts
• Application specific valving
• Quiet nitrile rubber bushings
• Note: Sold as a front pair

Coilover Specs:

• Extended Length: 22.740 inches
• Compressed Length: 17.150 inches
• Travel: 5.340 inches
• Top Mount: OEM
• Bottom Mount: Bar Pin