Rancho RS5000X Front Shock Absorber for Select Ford/Lincoln 1997-2004 (F-150/Expedition/Navigator) RS55235

Fits select 1997-2004 Ford Expedition, F-150, F-150 Heritage, F-250, and Lincoln Navigator.

The Rancho RS5000X RS55235 is a nitrogen-gas pressurized twin-tube shock absorber engineered to improve handling and reduce ride harshness both on and off-road. Utilizing an application-specific piston and Rancho's exclusive Progressive Engagement Valving, this shock is custom-tuned to minimize initial impacts at low speeds while maintaining firm control during aggressive maneuvers.

• Cross Tuned Technology: Advanced rebound valving system and compression phase improve overall vehicle stability and response.
• Heavy-Duty Construction: Features a 16mm nitro-carburized piston rod for scuff resistance, a 35mm sintered iron piston for structural integrity, and double-welded loops at high-stress points.
• All-Weather Performance: Large twin-tube body filled with specialized fluid capable of withstanding internal temperatures from -40 to 248°F.
• Reduced Fade: Nitrogen gas pressurized to 150 PSI minimizes air-to-oil mixture to prevent foaming and damping performance drop-off.
• Included Hardware: Comes equipped with a polyvinyl protective boot, polyurethane rebound bumper, and rubber bushings to help absorb road vibration.