Rancho RS5000X Front Shock Absorber for Select 2004-2012 Chevrolet, GMC, and Isuzu (RS55300)

Fits select 2004-2012 Chevrolet Colorado, GMC Canyon, Isuzu i-350, and Isuzu i-370.

The Rancho RS5000X shock absorber series is engineered to deliver improved handling and control for light trucks and SUVs both on and off-road. Utilizing a large twin-tube body design, this front shock features Cross Tuned technology with a unique rebound valving system and Progressive Engagement Valving. This allows the shock to minimize initial impacts at low speeds while maintaining firm control during aggressive maneuvers or rough terrain.

• Durable Construction: Built with a 16mm nitro-carburized piston rod to resist corrosion and scuffs, plus a 35mm sintered iron piston for structural strength.
• Gas Pressurized: Charged with 150 PSI nitrogen gas to minimize air-to-oil foaming and prevent damping fade under heavy use.
• Weather Resistance: Filled with all-weather fluid capable of maintaining consistent performance in temperatures ranging from -40°F to 248°F.
• Optimized Sealing: Features a low-friction, self-lubricating seal that retains gas and oil for smoother compression and quicker rebound.
• Ride Comfort: Includes a polyurethane rebound bumper and rubber bushings to help isolate road harshness and vibrations.

• Series: RS5000X
• Position: Front
• Part Number: RS55300
• Internal Design: Twin-tube
• Hardware: Protective polyvinyl boot and bushings included