Rancho RS55047A RS5000X Rear Shock for 2017-24 Ford F-250/F-350 4WD

Vehicle Fitment

• 2017-2024 Ford F-250 Super Duty 4WD (Rear Shock)
• 2017-2024 Ford F-350 Super Duty 4WD (Rear Shock)

Features

• Rancho RS5000X™ series rear shock absorber
• Progressive Engagement valving for smoother ride control
• Tuned compression control valve enhances stability
• Gas-charged, twin-tube design for consistent damping
• 16 mm nitro-carburized piston rod resists corrosion
• Large 2.25" body increases fluid capacity and cooling
• Protective red boot shields rod and seal from debris
• Rubber bushings absorb ride harshness and vibration

Specifications

• Part Number: RS55047A
• Brand: Rancho
• Series: RS5000X™
• Position: Rear Shock Absorber
• Design: Twin-tube, gas-charged
• Compressed Length: 18.58"
• Extended Length: 31.24"
• Travel Length: 12.66"
• Mount Style: Loop bushing & sleeve mounts
• Boot Included: Yes (protective)

Included Components

• 1x Rancho RS5000X™ Rear Shock Absorber (RS55047A)

Product Description

The **Rancho RS55047A** is a rear shock absorber in the RS5000X™ series engineered to improve ride comfort and handling on 2017-2024 Ford Super Duty trucks (F-250 and F-350 4WD). Featuring Rancho's Progressive Engagement valving and tuned compression control, this gas-charged shock delivers predictable damping performance on paved roads and off-road trails alike.

Built with a robust 2.25" twin-tube design, nitro-carburized piston rod, and protective red boot, the RS55047A resists corrosion and shields key components from debris for long-lasting durability. Rubber bushings help absorb road harshness and vibration, while the larger internal fluid capacity helps reduce heat-related performance fade. Designed as a direct replacement for rear suspension mounts on select Super Duty trucks, this shock is ideal for both stock and light load applications, balancing improved comfort with rugged reliability. Covered by Rancho's limited lifetime warranty, the RS55047A offers a solid upgrade for rear suspension performance and control.