Rancho RS55868 RS5000X 0" Front Suspension Strut for 21-24 Ford F150

RS5000X Suspension Strut Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000®X shocks deliver improved overall on- and off-road handling and performance. MINIMIZES ROUGH RIDE -- Exclusive Progressive Engagement Valving is custom-tuned for each vehicle to help reduce initial impacts at low speeds and minimizes a rough ride STRONG AND DURABLE -- Features a nitro-carburized piston rod to resist scuffs & corrosion, double-welded loops at stress areas, application-specific sintered iron piston for enhanced structural integrity and polyvinyl protective boot HANDLES EXTREME TEMPERATURE CHANGES -- Large twin-tube body filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to wit'stand internal temperatures of -40 to 248°F SMOOTH PERFORMANCE -- Polyurethane rebound bumper and rubber bushings help absorb ride harshness while the fluon-banded piston enhances responsiveness to changing road conditions for an overall smoother ride REDUCES FADE -- Nitrogen gas pressurized to 60 PSI to minimize air-to-oil mixture to reduce damping performance fade and foaming