Improved Handling and Performance: Reduces wheel shimmy, bump steer and vibration which helps minimize on- or off-road driver fatigue Accommodates Larger Tires: Engineered for vehicles with oversized wheels and tires Engineered to Last: Features protective boot to safeguard shock rod and oil seal Handles Extreme Temperature Changes: Twin-tube cellular gas design filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248°F Vehicle Compatibility: This fits your 1999 - 2004 F250 Super Duty 4WD and has OEM Steering Damper Mounts Ideal for off-road driving, towing and street applications, Rancho RS5000 steering stabilizers enhance a vehicle’s performance and minimize on- and off-road driver fatigue by reducing wheel shimmy, bump steer and vibration. Reduces wheel shimmy, bump steer and vibration which helps minimize on- or off-road driver fatigue. Engineered for vehicles with oversized wheels and tires. Features protective boot to safeguard shock rod and oil seal. Twin-tube cellular gas design filled with all-weather fluid allows for cooler operation, increased vehicle control and ability to withstand internal temperatures of -40 to 248°F. From its humble beginnings in 1955 to the present, Rancho has been dedicated to delivering suspension systems, shock absorbers and accessories that deliver rugged on- and off-road performance for Jeeps, trucks and SUVs. From its humble beginnings in 1955 to the present, Rancho has been dedicated to delivering suspension systems, shock absorbers and accessories that deliver rugged on- and off-road performance for Jeeps, trucks and SUVs.