Rancho RS5000X 0″ Front Lift Shocks for — US Postal FJ-8A 2WD

Description
Rancho RS5000X 0″ Front Lift Shocks for — US Postal FJ-8A 2WD

Rancho RS5000X 0″ Front Lift Shocks for US Postal FJ-8A 2WD

Part Number: RS55119

Summary: The Rancho RS5000X series leverages advanced twin-tube gas pressure technology to provide a significant upgrade over factory damping for the US Postal FJ-8A. Engineered for durability and consistent street comfort, these shocks feature a unique Progressive Engagement Valving system that adapts to varying road conditions. Whether navigating daily routes or maintaining a fleet vehicle, these shocks ensure a smooth, controlled ride by reducing harshness and improving stability.

Features

• Progressive Engagement Valving: Custom-tuned internal discs provide a gradual transition of damping force to ensure smooth ride quality during normal driving conditions.
• Gas Pressurized Design: Nitrogen gas charge minimizes air-to-oil mixture (aeration) to provide consistent performance and prevent shock fade.
• Twin-Tube Body: A 2.25-inch diameter reserve tube provides increased oil capacity and physical dent resistance to ensure long-term durability in demanding environments.
• Protective Boot: The included red polyvinyl accordion boot protects the piston rod from debris and moisture to ensure seal longevity.

Technical Specifications

Fitment

• AM General FJ-8A US Postal 2WD
• Note: Specifically designed for AM General Model FJ-8A at 0″ of lift.

What’s Included

• (2) Rancho RS5000X Series Shock Absorbers
• Protective Red Dust Boots
• Mounting Hardware (Where Applicable)

Why Choose This Product?

• Engineering Advantage: Rancho’s cross-tuned technology utilizes a larger piston diameter and increased fluid capacity compared to standard OE shocks, providing superior heat dissipation.
• Performance Benefit: Drivers will experience reduced vehicle sway and body roll, resulting in a more planted and predictable feel during cornering and braking.

Related Products

RS7MT (Front):
Rancho RS7MT 0" Front Lift Shocks for — US Postal FJ-8A 2WD

RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for — US Postal FJ-8A 2WD

RS90000XL (Front):
Rancho RS90000XL 0" Front Lift Shocks for — US Postal FJ-8A 2WD

RS7MT (Kit):
Rancho RS7MT 0" Lift Shocks for — US Postal FJ-8A 2WD

RS90000XL (Kit):
Rancho RS90000XL 0" Lift Shocks for — US Postal FJ-8A 2WD

Frequently Asked Questions

Will these shocks lift my US Postal FJ-8A?
No, these shocks are configured for a 0″ lift height and are designed to replace the factory-length units without changing the vehicle’s ride height.

What is the benefit of the twin-tube design?
The twin-tube design is exceptionally durable; if the outer tube is dented by road debris, the inner working tube remains unaffected, allowing the shock to continue functioning.

Is the boot required for installation?
While the shock will function without it, the included boot is highly recommended to protect the chrome piston rod from pitting and premature seal wear.