Rancho RS5000X Front Shock Absorber for 1961-1993 Dodge W100-W350 and Ramcharger - RS55111

Fits 1961-1993 Dodge W100, W150, W200, W250, W300, W350 series pickups and Ramcharger 4WD models.

The Rancho RS5000X series gas-pressurized shock absorber is engineered to provide improved handling and control for both on-road and off-road driving. Featuring Rancho's exclusive Cross Tuned technology and Progressive Engagement Valving (PEV), this shock is custom-tuned to minimize initial impacts at low speeds while maintaining firm control during aggressive maneuvers. The large twin-tube body is nitrogen-pressurized to 150 PSI, effectively reducing air-to-oil foaming and performance fade under heavy use.

• Durable Construction: Built with a 16mm nitro-carburized piston rod for superior scuff and corrosion resistance, plus double-welded loops at high-stress points.
• Precision Valving: Features an application-specific 35mm sintered iron piston and a compression control valve designed to regulate fluid transfer without disc flutter.
• Thermal Resilience: Large 2.25-inch twin-tube body contains all-weather fluid, allowing for stable operation in internal temperatures ranging from -40 to 248°F.
• Ride Quality: Includes a polyurethane rebound bumper and rubber bushings to isolate road noise and vibration.
• Protection: Comes equipped with a polyvinyl protective boot to shield the piston rod and oil seal from debris.

• Manufacturer Part Number: RS55111
• Piston Diameter: 35mm
• Rod Diameter: 16mm
• Gas Charge: 150 PSI Nitrogen
• Design: Twin-tube