Rancho RS5000X 1-2.5″ Rear Lift Shocks for 1997-1999 Ford F-250 4WD

Description
Rancho RS5000X 1-2.5″ Rear Lift Shocks for 1997-1999 Ford F-250 4WD

Rancho RS5000X 1-2.5″ Rear Lift Shocks for 1997-1999 Ford F-250 4WD

Part Number: RS55251

Summary: The Rancho RS5000X series leverages a patented progressive engagement valving system to significantly reduce harshness during initial impacts. Designed for the 1997-1999 Ford F-250 4WD, these twin-tube gas-pressurized shocks provide a smooth, controlled ride that excels in both daily commuting and rugged work environments. By utilizing a larger 2.25-inch body diameter, the RS5000X increases oil capacity to maintain cooler operating temperatures and consistent damping performance under load.

Features

• Progressive Engagement Valving: Custom-tuned internal discs provide a gradual transition of fluid to ensure smooth ride quality over small bumps while maintaining firm control on rough terrain.
• Gas Pressurization: High-pressure Nitrogen gas charge provides a consistent film of oil against the piston to ensure rapid response and reduced aeration.
• 2.25-inch Twin-Tube Body: The increased fluid capacity provides better heat dissipation to ensure fade-free performance during heavy-duty hauling.
• Nitro-Carburized Piston Rod: A heavy-duty 16mm rod diameter provides exceptional structural rigidity to ensure long-term durability in harsh environments.

Technical Specifications

Fitment

• 1997-1999 Ford F-250 4WD
• Note: Light Duty Up To 8,500 lb GVW; Excluding Air Leveling.

What’s Included

• Includes 2 Shocks
• Protective Red Dust Boots
• Necessary Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s Cross-Tuned technology optimizes the relationship between the piston and the valving for vehicle-specific stability.
• Performance Benefit: Eliminates the “stiff” ride typically associated with heavy-duty trucks while maintaining the control needed for 2.5 inches of rear lift.

Related Products

Front Only (Same Series):
Rancho RS5000X 1-2.5" Front Lift Shocks for 1997-1999 Ford F-250 4WD

RS5000X (Kit):
Rancho RS5000X 1-2.5" Lift Shocks for 1997-1999 Ford F-250 4WD

Frequently Asked Questions

Will these shocks lift my Ford F-250?
No, these shocks do not create lift. They are specifically configured for vehicles that have already been equipped with 1 to 2.5 inches of rear lift height.

What does “Progressive Engagement Valving” do?
It is a technical design that allows the shock to react differently based on the speed of the impact, staying soft on the highway and firming up instantly when hitting a large pothole or off-road obstacle.

Are these compatible with heavy-duty F-250 models?
These are specifically engineered for Light Duty models (up to 8,500 lb GVW) and should not be used on vehicles equipped with factory air leveling systems.