Rancho RS55009 RS5000X Rear Shock for 1970-79 Ford F-Series Trucks RWD

Vehicle Fitment

• 1970-1979 Ford F-100 (RWD) - Rear Shock
• 1975-1979 Ford F-150 (RWD) - Rear Shock
• 1970-1979 Ford F-250 (RWD) - Rear Shock

Features

• Rancho RS5000X™ series rear shock absorber
• Twin-tube design tuned for on- and off-road performance
• Gas-charged construction for consistent damping
• Progressive rebound and compression valving
• Nitro-carburized rod for corrosion resistance
• Protective boot shields shaft and seal from debris
• Rubber bushings absorb road harshness
• Direct fit using OEM mounting points

Specifications

• Part Number: RS55009
• Brand: Rancho
• Series: RS5000X™
• Position: Rear
• Design: Twin-tube, non-adjustable
• Gas Charged: Yes
• Compressed Length: 15.75"
• Extended Length: 26.32"
• Travel Length: 10.57"
• Mounts: Rubber-bushing loop lower, stem upper
• Protective Boot: Included
• Bushing Material: Natural rubber

Included Components

• 1x Rancho RS5000X™ Rear Shock Absorber (RS55009)

Product Description

The **Rancho RS55009** is a rear shock absorber in the RS5000X™ series built for classic Ford F-Series trucks from the 1970s. Engineered with a gas-charged, twin-tube design and tuned valving, this shock delivers improved ride quality and handling both on pavement and off-road by controlling rebound and compression motion more effectively than stock units. The larger internal body and progressive engagement valving help absorb impacts and maintain stability over rough terrain.

Constructed with a nitro-carburized piston rod and rubber-isolated mounting bushings, the RS55009 offers durability and protection against corrosion and wear. The included protective boot further shields key components. Designed as a direct fit for the rear of 1970-1979 Ford F-100, F-150, and F-250 trucks (rear-wheel drive), this shock is ideal for enthusiasts looking to refresh ride comfort and performance on vintage pickups with lifted or stock suspension setups.