Rancho 99-16 Ford Pickup / F250 Series Super Duty Rear RS5000X Shock

When you're hauling heavy loads or tackling rough terrain in your 1999-2016 Ford F-250 Super Duty, the rear shocks play a big role in keeping things stable and comfortable. The Rancho RS5000X shock absorber is built to handle those demands, offering an improved ride and better control whether you're on the highway or off the beaten path.

This shock features a large, 35mm sintered iron piston and a 16mm nitro-carburized piston rod, which is strong and resists corrosion and scuffs. Rancho uses a unique valving system, called Progressive Engagement Valving, that's custom-tuned for your F-250. This helps absorb initial impacts at lower speeds, smoothing out the ride and minimizing harshness. The twin-tube body is filled with all-weather fluid and pressurized with nitrogen gas to 150 PSI, which helps keep the shock running cooler and prevents performance fade, even in extreme temperatures.

You'll find double-welded loops at stress areas for added durability, and it comes with a protective boot to keep out dirt and debris. The polyurethane rebound bumper and rubber bushings help absorb road harshness, while the fluon-banded piston makes it more responsive to changing road conditions. This shock is designed to fit right and help maintain control of your vehicle.