Rancho RS5000X 0″ Rear Lift Shocks for 1977-1979 Ford F-250 4WD

Description
Rancho RS5000X 0″ Rear Lift Shocks for 1977-1979 Ford F-250 4WD

Rancho RS5000X 0″ Rear Lift Shocks for 1977-1979 Ford F-250 4WD

Part Number: RS55179

Summary: The Rancho RS5000X series leverages advanced Twin-Tube gas pressurized technology to provide a significant upgrade over factory damping for your classic Ford 4WD. Engineered with a unique Progressive Engagement Valving system, these shocks minimize harshness during initial impacts while maintaining firm control during aggressive maneuvers. This Tier 4 shock is specifically tuned for durability and dent resistance, ensuring smooth street comfort and reliable off-road performance for stock-height applications.

Features

• Progressive Engagement Valving: A custom-tuned internal shim stack provides reduced harshness during low-velocity movements to ensure a smoother ride on highway surfaces.
• Twin-Tube Gas Pressure: The 2.25-inch nitrogen-charged reserve tube provides increased fluid capacity to ensure consistent cooling and reduced fade during extended use.
• 16mm Nitro-Carburized Rod: The heavy-duty hardened piston rod provides superior scuff resistance and structural integrity to ensure long-term seal protection.
• Polyurethane Bushings: High-density mounting material provides enhanced durability compared to standard rubber to ensure reduced deflection and improved steering response.

Technical Specifications

Fitment

• 1977-1979 Ford F-250 4WD
• Note: RS5600 series shocks are 1 3/16 bore.

What’s Included

• Includes 2 Shocks
• Protective Black Shock Boots
• Required Mounting Hardware and Bushings

Why Choose This Product?

• Engineering Advantage: Rancho’s cross-tuned technology utilizes a larger shock body and specialized valving to handle the heavy-duty requirements of the F-250 chassis.
• Performance Benefit: Provides a balanced ride that eliminates “wheel hop” and improves traction on uneven terrain without sacrificing daily drivability.

Related Products

RS90000XL (Rear):
Rancho RS90000XL 0" Rear Lift Shocks for 1977-1979 Ford F-250 4WD

Frequently Asked Questions

Will these shocks lift my Ford F-250?
No, these shocks are configured for 0-inch lift applications and are designed to replace the factory-length units while improving damping performance.

What is the benefit of the Twin-Tube design?
The Twin-Tube design allows the outer tube to take damage (like rock dings) without affecting the inner pressure tube, ensuring the shock remains functional in rugged environments.

Are boots included with these shocks?
Yes, these RS5000X shocks include protective black boots to shield the piston rod from debris and contaminants.