Rancho RS55273 Rear RS5000X Shock for 99-04 Ford Super Duty Stock Height

Vehicle Fitment

• 1999-2004 Ford F-250/F-350 Super Duty (Rear Shock)

Features

• RS5000X series gas-charged shock absorber for improved ride control
• Progressive engagement valving for smoother damping response
• Tuned compression control valve for balanced on- and off-road performance
• Large 2.25" twin-tube body design for durability and heat dissipation
• 16 mm nitro-carburized piston rod resists corrosion and wear
• Protective polyvinyl dust boot to shield the shaft and seal
• Polyurethane rebound bumper to absorb harsh impacts
• Rubber bushings for quieter operation and reduced vibration

Specifications

• Part Number: RS55273
• Position: Rear shock absorber
• Compressed Length: 16.89 in (429 mm)
• Extended Length: 28.08 in (713 mm)
• Travel Length: 11.19 in
• Mount Types: Upper eyelet, lower loop with sleeve
• Twin-tube design with nitro-carburized rod and gas pressurization
• Limited lifetime replacement warranty (manufacturer)

Included Components

• 1x Rancho RS5000X RS55273 rear shock absorber

Product Description

The Rancho RS55273 RS5000X rear shock absorber is engineered to enhance ride quality and handling for 1999-2004 Ford F-250 and F-350 Super Duty trucks. Featuring progressive engagement valving and tuned compression control, it provides consistent damping for both on-road comfort and off-road performance. Its robust twin-tube construction with a nitro-carburized piston rod and protective dust boot ensures long-lasting durability under demanding conditions.

This direct-fit rear shock is an ideal replacement or upgrade for stock units, reducing harsh ride characteristics while improving stability during acceleration, braking, and cornering. Gas-charged design minimizes foaming and fade, while rubber bushings and a rebound bumper reduce noise and vibration. Perfect for daily driving, towing, and light off-road use, the RS55273 delivers dependable performance and enhanced control.