Rancho RS5000X 2.5-4″ Lift Shocks for 1969-1986 GMC K2500 4WD

Description
Rancho RS5000X 2.5-4″ Lift Shocks for 1969-1986 GMC K2500 4WD

Rancho RS5000X 2.5-4″ Lift Shocks for 1969-1986 GMC K2500 4WD

Part Number: RS55001 / RS55112

Summary: The Rancho RS5000X series is engineered to provide a significant upgrade in ride quality and durability for your lifted GMC K2500. Featuring a cross-tuned twin-tube design, these shocks utilize a unique progressive engagement valving system that minimizes harshness during initial impacts. This configuration is specifically tuned to handle the increased unsprung weight of larger tires, ensuring a smooth street ride without sacrificing off-road control.

Features

• Progressive Engagement Valving: A custom-tuned internal shim stack provides a soft response during slow travel to ensure maximum comfort on paved surfaces.
• Gas Pressurization: High-pressure nitrogen gas charge provides a consistent damping force to ensure reduced aeration and shock fade during spirited driving.
• Enlarged Shock Body: A 2.25-inch reserve tube provides increased fluid capacity to ensure cooler operating temperatures during heavy-duty use.
• Nitro-Carburized Piston Rod: The heavy-duty 16mm rod construction provides superior scuff resistance to ensure long-term seal integrity in harsh environments.

Technical Specifications

Fitment

• 1969-1986 GMC K2500 4WD
• Note: Fits 2 & 4 Door models equipped with Rancho Suspension systems.

What’s Included

• Includes 4 Shocks (Full Set)
• Protective Red Dust Boots
• Required Installation Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s patented Cross-Tune technology optimizes the relationship between the piston and the base valve for a highly refined damping curve.
• Performance Benefit: Drivers experience a reduction in body roll and “nose dive” while maintaining the compliance needed for daily commuting.

Related Products

RS5000X (Rear):
Rancho RS5000X 2.5-4" Rear Lift Shocks for 1969-1986 GMC K2500 4WD

RS5000X (Front):
Rancho RS5000X 2.5-4" Front Lift Shocks for 1969-1986 GMC K2500 4WD

RS90000XL (Rear):
Rancho RS90000XL 2.5-4" Rear Lift Shocks for 1969-1986 GMC K2500 4WD

RS7MT (Rear):
Rancho RS7MT 2.5-4" Rear Lift Shocks for 1969-1986 GMC K2500 4WD

RS90000XL (Front):
Rancho RS90000XL 2.5-4" Front Lift Shocks for 1969-1986 GMC K2500 4WD

RS90000XL (Kit):
Rancho RS90000XL 2.5-4" Lift Shocks for 1969-1986 GMC K2500 4WD

Frequently Asked Questions

Will these shocks lift my GMC K2500?
No, these shocks do not create lift. They are specifically valved and extended in length to work with vehicles already equipped with a 2.5 to 4-inch suspension lift.

Are these shocks sold as a complete set?
Yes, this specific SKU includes a full set of four shocks (two front and two rear) to completely refresh your vehicle’s suspension.

What is the benefit of the twin-tube design over a monotube?
The twin-tube design is highly durable for off-road use; if the outer body is dented by a rock, the inner cylinder remains functional, ensuring you aren’t stranded on the trail.