Rancho RS5000X 4″ Rear Lift Shocks for 1999-2004 Ford F-350 4WD

Description
Rancho RS5000X 4″ Rear Lift Shocks for 1999-2004 Ford F-350 4WD

Rancho RS5000X 4″ Rear Lift Shocks for 1999-2004 Ford F-350 4WD

Part Number: RS55261

Summary: The Rancho RS5000X series utilizes an innovative cross-tuned twin-tube design to significantly improve off-road handling and on-road comfort. Engineered specifically for the Ford F-350, these shocks are configured for 4-inch rear lift heights, providing the necessary travel to maintain contact in rugged terrain. The gas-pressurized twin-tube construction ensures high-speed damping remains consistent while protecting the internal components from road debris and trail impacts.

Features

• Cross-Tuned Technology: A specialized progressive rebound and compression disc valving system provides customized damping to ensure controlled ride quality during both low-speed crawling and high-speed highway driving.
• Gas-Pressurized Twin-Tube: High-pressure nitrogen gas charge provides a reduction in aeration and foaming to ensure fade-free performance in demanding environments.
• Nitro-Carburized Piston Rod: A heavy-duty 16mm diameter rod provides increased structural rigidity and corrosion resistance to ensure a long service life under heavy towing or hauling conditions.
• Protective Boot: Included red polyvinyl accordion boot provides a physical barrier for the oil seal and piston rod to ensure longevity against mud, salt, and rocks.

Technical Specifications

Fitment

• 1999-2004 Ford F-350 4WD
• Note: Configured for vehicles with 4″ rear lift; specifically designed for use with Rancho Suspension systems.

What’s Included

• Includes 2 Shocks (Pair)
• Protective Dust Boots
• Required Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s patented valving system bridges the gap between daily drivability and off-road capability by reacting instantly to changes in surface texture.
• Performance Benefit: Eliminates the “harsh” ride typically associated with lifted heavy-duty trucks while maintaining the stability required for maximum payload.

Related Products

Front Only (Same Series):
Rancho RS5000X 4" Front Lift Shocks for 1999-2004 Ford F-350 4WD

RS90000XL (Rear):
Rancho RS90000XL 4" Rear Lift Shocks for 1999-2004 Ford F-350 4WD

RS7MT (Front):
Rancho RS7MT 4" Front Lift Shocks for 1999-2004 Ford F-350 4WD

RS90000XL (Front):
Rancho RS90000XL 4" Front Lift Shocks for 1999-2004 Ford F-350 4WD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 1999-2004 Ford F-350 4WD

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 1999-2004 Ford F-350 4WD

Frequently Asked Questions

Will these shocks lift my truck?
No, these shocks do not provide the lift. They are specifically valved and sized to function with a vehicle that has already been equipped with a 4-inch rear lift kit.

What is the benefit of the RS5000X gas charge?
The nitrogen gas charge minimizes the mixing of oil and air (foaming), which maintains consistent damping forces even as the shock heats up during frequent cycling.

Are these sold as a pair?
Yes, this specific SKU (2xRS55261_n500) includes two rear shocks to cover both sides of your Ford F-350’s rear axle.