Rancho RS5000X 0″ Lift Shocks for 1965-1977 Ford F-250 4WD

Description
Rancho RS5000X 0″ Lift Shocks for 1965-1977 Ford F-250 4WD

Rancho RS5000X 0″ Lift Shocks for 1965-1977 Ford F-250 4WD

Part Number: RS55014 / RS55118

Summary: The Rancho RS5000X series provides a significant upgrade for the 1965-1977 Ford F-250 4WD, utilizing a cross-tuned twin-tube design to enhance both on-road comfort and off-road durability. Engineered to maintain factory ride height, these shocks feature a unique progressive engagement valving system that minimizes harshness during initial impacts. This complete set is specifically calibrated to handle the heavy-duty demands of classic Ford trucks, ensuring a stable and controlled driving experience across varied terrain.

Features

• Progressive Engagement Valving: Custom-tuned compression and rebound circuits provide a smooth transition between damping stages to ensure maximum control during high-velocity suspension movements.
• Gas Pressurized Twin-Tube Design: A 150-PSI nitrogen gas charge provides a consistent oil-to-gas interface to ensure reduced aeration and shock fade.
• Heavy-Duty Body: A 2.25-inch diameter reserve tube provides increased oil capacity to ensure cooler operating temperatures during heavy work or towing.
• Nitro-Carburized Piston Rod: The 16mm specialized rod coating provides superior corrosion resistance to ensure long-term seal integrity in harsh environments.

Technical Specifications

Fitment

• 1965-1977 Ford F-250 4WD
• Note: RS55116/RS55118 series: I.D. of shock bushing is smaller than mounting pin and requires lubrication and extra effort for installation. RS8125 Axle Shim Kit may be required on rear axle for shock-to-axle clearance.

What’s Included

• (2) Front RS5000X Series Shock Absorbers
• (2) Rear RS5000X Series Shock Absorbers
• Protective Red Shock Boots
• Required Mounting Hardware and Bushings

Why Choose This Product?

• Engineering Advantage: Rancho’s patented Progressive Engagement Valving is specifically tuned to the leaf-spring geometry of classic Ford F-Series trucks.
• Performance Benefit: Reduces the “bouncy” feel common in older 3/4-ton trucks while providing the ruggedness needed for 4WD applications.

Related Products

RS5000X (Front):
Rancho RS5000X 0" Front Lift Shocks for 1965-1977 Ford F-250 4WD

RS5000X (Rear):
Rancho RS5000X 0" Rear Lift Shocks for 1965-1977 Ford F-250 4WD

RS7MT (Rear):
Rancho RS7MT 0" Rear Lift Shocks for 1965-1977 Ford F-250 4WD

RS90000XL (Front):
Rancho RS90000XL 0" Front Lift Shocks for 1965-1977 Ford F-250 4WD

RS90000XL (Rear):
Rancho RS90000XL 0" Rear Lift Shocks for 1965-1977 Ford F-250 4WD

RS90000XL (Kit):
Rancho RS90000XL 0" Lift Shocks for 1965-1977 Ford F-250 4WD

Frequently Asked Questions

Will these shocks lift my Ford F-250?
No, these shocks are configured for 0″ of lift and are designed to replace factory-length shock absorbers at stock height.

Why is lubrication recommended for the bushings during installation?
The inner diameter of the bushing is precision-engineered for a tight fit on the mounting pin; using a silicone-based lubricant ensures a proper seat and prevents noise.

Do I need the optional shim kit for the rear axle?
The RS8125 Axle Shim Kit may be necessary if you encounter clearance issues between the shock body and the axle housing during the suspension cycle.