Rancho RS55754 RS5000X 0" Rear Suspension Strut for 06-10 Explorer/Mountaineer

RS5000X Suspension Strut Featuring a unique, exclusive valving system and advanced compression functionality, Rancho® RS5000 X struts deliver improved overall on- and off-road handling and performance. IMPROVED HANDLING AND PERFORMANCE -- Cross Tuned technology featuring exclusive rebound valving system and advanced compression phase improves overall handling and performance on and off road 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