Rancho RS5000X Front Shock for Select 1999-2007 Chevrolet Silverado & GMC Sierra 1500/2500 RS55263

Fits select 1999-2007 Chevrolet Silverado and GMC Sierra 1500, 1500 Classic, and 2500 trucks.

The Rancho RS5000X RS55263 shock absorber is engineered to provide precise control and a smooth ride for both daily driving and off-road use. Featuring Rancho’s exclusive Cross Tuned technology and Progressive Engagement Valving (PEV), this twin-tube shock is custom-tuned to reduce initial impacts at low speeds while maintaining stability during aggressive maneuvers. The 150 PSI nitrogen gas charge minimizes aeration and shock fade, ensuring consistent damping performance under heavy loads or extreme temperature shifts ranging from -40 to 248°F.

Built for long-term durability, the RS55263 features a 16mm nitro-carburized piston rod to resist scuffing and corrosion, paired with a 35mm sintered iron piston for structural integrity. Polyurethane rebound bumpers and rubber bushings help absorb ride harshness, while the polyvinyl protective boot shields the rod from debris.

• Manufacturer Part Number: RS55263
• Internal Design: Large twin-tube body with all-weather fluid
• Gas Charge: Nitrogen pressurized to 150 PSI to reduce foaming and fade
• Piston: 35mm sintered iron piston with fluon-banded seal for responsiveness
• Piston Rod: 16mm nitro-carburized rod for superior corrosion resistance
• Mounting: Double-welded loops at stress areas for enhanced durability
• Included Hardware: Polyurethane rebound bumper, rubber bushings, and protective boot