Rancho RS5000X 0″ Lift Shocks for 1999-2004 Ford F-450

Description
Rancho RS5000X 0″ Lift Shocks for 1999-2004 Ford F-450

Rancho RS5000X 0″ Lift Shocks for 1999-2004 Ford F-450 Super Duty

Part Number: 2xRS55267_2xRS55126_n528

Summary: The Rancho RS5000X series defines durability and ride quality for the Ford F-450 and F-550 Super Duty. Featuring a sophisticated twin-tube gas pressurized design, these shocks utilize a cross-tuned valve system to provide a smooth, controlled ride on the highway while maintaining the ruggedness needed for heavy-duty work. Designed for stock height vehicles, this complete set replaces your factory dampers with a high-capacity solution that resists internal aeration and provides consistent performance under load.

Features

• Progressive Engagement Valving: A custom-tuned internal shim stack provides restricted oil flow at low speeds to ensure improved handling and stability during towing or hauling.
• Twin-Tube Gas Pressure: The 150-PSI nitrogen gas charge provides a consistent damping force to ensure reduced aeration and foaming during high-cycle operation.
• High-Capacity Body: A 2.25-inch diameter shock body provides increased fluid capacity to ensure lower operating temperatures and consistent performance on long hauls.
• Protective Boot: The included red polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against road debris.

Technical Specifications

Fitment

• 1999-2004 Ford F-450 Super Duty
• 1999-2004 Ford F-550 Super Duty
• Note: Fits 4WD models at factory ride height.

What’s Included

• Includes 4 Shocks
• (2) RS55267 Front Shocks
• (2) RS55126 Rear Shocks
• Protective Red Dust Boots

Why Choose This Product?

• Engineering Advantage: Rancho’s Cross-Tuned technology utilizes a unique base valve design that balances comfort and control specifically for heavy-duty chassis.
• Performance Benefit: Large-bore construction allows the shock to dissipate heat faster than OEM units, preventing “shock fade” during heavy-duty cycles.

Related Products

RS5000X (Front):
Rancho RS5000X 0" Front Lift Shocks for 1999-2004 Ford F-450

RS5000X (Rear):
Rancho RS5000X 0" Rear Lift Shocks for 1999-2004 Ford F-450

RS90000XL (Rear):
Rancho RS90000XL 0" Rear Lift Shocks for 1999-2004 Ford F-450

RS7MT (Front):
Rancho RS7MT 0" Front Lift Shocks for 1999-2004 Ford F-450

RS90000XL (Front):
Rancho RS90000XL 0" Front Lift Shocks for 1999-2004 Ford F-450

RS90000XL (Kit):
Rancho RS90000XL 0" Lift Shocks for 1999-2004 Ford F-450

Frequently Asked Questions

Will these shocks lift my Ford F-450?
No, these shocks are configured for 0-inches of lift and are designed to replace factory-length dampers on stock height vehicles.

How does the RS5000X improve ride quality?
The RS5000X uses Progressive Engagement Valving, which is softer during initial impacts for comfort but firms up quickly to prevent excessive body roll and sway.

Are the boots required for installation?
While the shocks will function without them, the included boots are highly recommended to protect the nitro-carburized rods from rock chips and salt corrosion.