Rancho 17-19 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 rear shock absorber is specifically tuned for your 2017-2025 Ford F-250 Super Duty, aiming to improve both on- and off-road handling. It works by managing fluid transfer to absorb impacts effectively, helping to keep your truck stable and comfortable.

Rancho built these shocks with a large twin-tube body filled with all-weather fluid, allowing them to operate cooler and maintain performance across a wide temperature range, from -40 to 248°F. The application-specific piston and a Progressive Engagement Valving system work together to absorb initial impacts at lower speeds, smoothing out the ride. A low-friction seal keeps gas and oil in place for quicker rebound, while a polyurethane rebound bumper and rubber bushings help soak up harshness.

This shock absorber is pressurized with nitrogen gas to 150 PSI, which helps prevent air from mixing with the oil and reduces damping performance fade. Double-welded loops at stress points and a 35mm sintered iron piston add to its overall structural integrity, making it a well-built component for your Super Duty.