Accommodates Larger Tires: Engineered for vehicles with oversized wheels and tires Improves Handling and Performance: Reduces wheel shimmy, bump steer, and vibration which helps minimize on-or off-road driver fatigue 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 degrees to 248 degrees fahrenheit Engineered to Last: Features protective boot to safeguard shock rod and oil seal Vehicle Compatibility: This fits your 1986-1990 Bronco ll RWD, 1980-1996 F150 RWD, 1957-1964 F250, 1980-1997 F350, 1983-1997 Ranger 4WD, 1986-1993 4Runner; Must Use with RS5573 Mounting Kit Rancho's RS5000 shock is one of the most popular shocks in the industry, both as an aftermarket upgrade and as an OEM replacement. Ideal for work or play, Rancho RS5000 shocks deliver a comfortable highway ride while being responsive during off-road driving on any stock or lifted application. The world's most proven performance shocks! Covered by a Limited Lifetime Warranty. Longevity, firm handling characteristics, affordability, protective shock boot, all make this shock a tried and true shock for light truck, SUV, and jeep shock absorber upgrades. Ideal for off-road driving, towing and street applications, a Rancho RS5000 steering stabilizer enhances a vehicle’s performance. Designed for vehicles with oversized tires and wheels, a RS5000 steering stabilizer minimizes on- and off-road driver fatigue by reducing wheel shimmy, bump steer and vibration.