Rancho RS5000X Front Shock Absorber for 1980-2004 Ford and Dodge Trucks - RS55029

Fits select 1980-2004 Ford Bronco, F-100, F-150, F-250, F-350, and Dodge Dakota and Durango models. The Rancho RS5000X (MPN: RS55029) is a performance-tuned twin-tube shock designed to handle both highway stability and off-road impacts. Built with Rancho’s exclusive Progressive Engagement Valving, these shocks feature a custom-tuned compression phase that reduces initial harshness at low speeds while maintaining control during high-energy cycles.

Constructed for durability in extreme environments, the RS55029 utilizes a large twin-tube body filled with all-weather fluid, capable of operating from -40°F to 248°F. The 16mm nitro-carburized piston rod provides superior scuff and corrosion resistance, while the 35mm sintered iron piston ensures structural integrity under heavy load. A nitrogen gas charge pressurized to 150 PSI minimizes air-to-oil foaming to prevent damping fade during sustained use.

• Precision Valving: Progressive Engagement Valving and Compression Control Valve technology for vehicle-specific ride tuning.
• Rugged Construction: 16mm nitro-carburized rod, 35mm sintered iron piston, and double-welded loops at high-stress points.
• Enhanced Sealing: Low-friction, self-lubricating seal retains gas and oil for consistent rebound and compression.
• Included Protection: Comes with a polyvinyl protective boot and durable polyurethane/rubber bushings.

• Manufacturer: Rancho
• Series: RS5000X
• Part Number: RS55029
• Gas Type: Nitrogen (150 PSI)
• Operating Temperature: -40°F to 248°F
• Rod Diameter: 16mm
• Piston Diameter: 35mm