Rancho 05-16 Ford Pickup / F250 Series Super Duty Rear RS5000X Shock

The 16mm nitro-carburized piston rod on this Rancho RS5000X shock is a key detail, offering solid resistance to scuffs and corrosion. This is important for a rear shock on a truck like your 2005-2016 Ford F-250 Super Duty, which often sees tougher conditions. Rancho designed this shock to improve how your truck handles both on the pavement and when you head off-road.

Inside, you'll find a large twin-tube body filled with fluid that can handle extreme temperatures, from -40 to 248°F. This helps keep the shock operating cooler, which means more consistent damping and better control for your vehicle. The sintered iron piston is 35mm, giving it extra structural strength, and it works with a low-friction seal to keep the gas and oil where they belong for quicker rebound and smoother compression. You'll also notice polyurethane rebound bumpers and rubber bushings that help soak up harshness from the road, making for a more comfortable ride.

Rancho's Cross Tuned technology and Progressive Engagement Valving are custom-tuned for your F-250 Super Duty. This means the shock is specifically calibrated to absorb impacts effectively, reduce initial jarring at low speeds, and minimize damping fade, all while maintaining good control of your vehicle's motion.