Rancho RS5000X 2.5-4″ Lift Shocks for 1969-1991 GMC Jimmy 4WD

Description
Rancho RS5000X 2.5-4″ Lift Shocks for 1969-1991 GMC Jimmy 4WD

Rancho RS5000X 2.5-4″ Lift Shocks for 1969-1991 GMC Jimmy 4WD

Part Number: RS55001 / RS55112

Summary: The Rancho RS5000X series utilizes a cross-tuned twin-tube design to provide a significant upgrade in ride quality for lifted GMC Jimmy models. By integrating a unique valving system that minimizes aeration, these shocks deliver consistent damping and durability during both street commuting and light off-road use. Designed specifically for vehicles with 2.5 to 4 inches of lift, they provide the necessary travel to maintain control and comfort on aged leaf-spring platforms.

Features

• Progressive Engagement Valving: A custom-tuned compression and rebound circuit provides a smooth transition between low and high-speed impacts to ensure driver comfort on uneven terrain.
• Gas Pressurization: High-pressure nitrogen gas charging provides a reduction in oil foaming and cavitation to ensure consistent damping performance under load.
• 16mm Nitro-Carburized Rod: The heavy-duty hardened piston rod provides increased structural rigidity to ensure long-term seal integrity and dent resistance.
• Polyurethane Bushings: High-density mounting points provide superior vibration isolation to ensure a quiet and controlled cabin environment.

Technical Specifications

Fitment

• 1969-1991 GMC Jimmy 4WD
• Note: 2 & 4 Door models equipped with Rancho Suspension.

What’s Included

• (2) RS55001 Front Shocks
• (2) RS55112 Rear Shocks
• Protective Black Shock Boots
• Required Installation Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s patented Cross-Tuned technology optimizes the relationship between the piston and the base valve for superior low-velocity control.
• Performance Benefit: The twin-tube design offers an extra layer of protection; if the outer body is dented by debris, the inner working tube remains functional, ensuring you aren’t stranded on the trail.

Related Products

RS5000X (Rear):
Rancho RS5000X 2.5-4" Rear Lift Shocks for 1969-1991 GMC Jimmy 4WD

RS5000X (Front):
Rancho RS5000X 2.5-4" Front Lift Shocks for 1969-1991 GMC Jimmy 4WD

RS90000XL (Rear):
Rancho RS90000XL 2.5-4" Rear Lift Shocks for 1969-1991 GMC Jimmy 4WD

RS7MT (Rear):
Rancho RS7MT 2.5-4" Rear Lift Shocks for 1969-1991 GMC Jimmy 4WD

RS90000XL (Front):
Rancho RS90000XL 2.5-4" Front Lift Shocks for 1969-1991 GMC Jimmy 4WD

RS90000XL (Kit):
Rancho RS90000XL 2.5-4" Lift Shocks for 1969-1991 GMC Jimmy 4WD

Frequently Asked Questions

Will these shocks lift my GMC Jimmy?
No, these shocks do not create lift. They are specifically valved and sized to accommodate vehicles that have already been modified with a 2.5″ to 4″ suspension lift kit.

Are the shock boots included in this set?
Yes, this kit includes Rancho’s signature black protective boots to shield the piston rods from dirt, mud, and road salt.

Do I need special tools for installation?
These shocks utilize OE-style mounts and can typically be installed with standard hand tools. Professional alignment is always recommended after any suspension work.