Improved Handling & Performance: Rancho's RS5000 steering stabilizer reduces wheel shimmy, bump steer and vibration which helps minimize on-road or off-road driver fatigue Handles Extreme Temperature Changes: The 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 degrees fahrenheit Engineered to Last: Engineered for vehicles with oversized wheels and tires; Rancho's RS5000 series steering stabilizer features a protective boot to safeguard shock rod and oil seal Buy with Confidence: Knowing that Rancho RS5000 series steering stabilizers are backed by Rancho’s limited lifetime warranty, you can purchase this steering stabilizer with confidence Vehicle Compatibility: Fits 1999-2004 F250 Super Duty 4WD with original equipment manufacturer steering damper mounts Enhance your driving dynamics with Rancho RS5000 series steering stabilizer! Ideal for off-road driving, towing and street applications, the Rancho RS5000 steering stabilizer enhances a vehicle’s performance. Designed for vehicles with oversized tires and wheels, the RS5000 steering stabilizer minimizes on and off-road driver fatigue by reducing wheel shimmy, bump steer and vibration. Rancho's RS5000 series steering stabilizer features a protective boot to safeguard shock rod and oil seal. The 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 degrees fahrenheit. Backed by Rancho's limited lifetime warranty, you can purchase this shock with confidence. Rancho has been dedicated to delivering premium suspension systems, shock absorbers, and accessories that provide rugged on- and off-road performance for trucks and SUVs. From its humble beginnings in 1955, the brand has engineered parts to tackle the demanding desert terrains of Mexico, Southern California, and Morocco, working closely with legendary racers. Rancho's commitment to off-road capabilities has driven its innovation and growth over the decades, making it a trusted name among enthusiasts seeking uncompromising performance. - Vehicle Compatibility: Fits 1999-2004 F250 Super Duty 4WD with original equipment manufacturer steering damper mounts.