Rancho RS5000X 2.5-4″ Rear Lift Shocks for 1988-1999 GMC K1500 4WD

Description
Rancho RS5000X 2.5-4″ Rear Lift Shocks for 1988-1999 GMC K1500 4WD

Rancho RS5000X 2.5-4″ Rear Lift Shocks for 1988-1999 GMC K1500 4WD

Part Number: RS55190

Summary: The Rancho RS5000X series leverages a patented progressive engagement valving system to significantly improve ride quality on both paved surfaces and rugged trails. Specifically engineered for the GMC K1500 and Yukon with 2.5 to 4 inches of rear lift, these twin-tube gas-pressurized shocks provide the ideal balance of durability and comfort. The increased oil capacity of the 2.25-inch reserve tube ensures cooler operating temperatures, effectively managing the damping forces required for lifted applications.

Features

• Progressive Engagement Valving: Custom-tuned shim stacks provide a soft initial response that firms up under heavy cycling to ensure controlled handling during off-road articulation.
• Twin-Tube Gas Pressure: Low-pressure Nitrogen gas charge provides a consistent damping force to ensure reduced aeration and foaming.
• 2.25-inch Reserve Tube: A larger fluid capacity provides increased heat dissipation to ensure fade-free performance during extended use.
• Nitro-Carburized Piston Rod: Heavy-duty construction provides superior corrosion resistance to ensure long-term seal integrity in harsh environments.

Technical Specifications

Fitment

• 1988-1999 GMC K1500 4WD
• 1992-1999 GMC Yukon 4WD
• Note: Fits 4-door models equipped with Rancho Suspension systems. Configured for 2.5-4″ of rear lift.

What’s Included

• Includes 2 Shocks
• Protective Shock Boots
• Necessary Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s cross-tuned technology optimizes the relationship between the piston and base valve for specific vehicle weights and geometries.
• Performance Benefit: Drivers experience a “best of both worlds” scenario—smooth highway cruising with the rugged resilience needed for 4WD exploration.

Related Products

Front Only (Same Series):
Rancho RS5000X 2.5-4" Front Lift Shocks for 1988-1999 GMC K1500 4WD

RS90000XL (Rear):
Rancho RS90000XL 2.5-4" Rear Lift Shocks for 1988-1999 GMC K1500 4WD

RS90000XL (Front):
Rancho RS90000XL 2.5-4" Front Lift Shocks for 1988-1999 GMC K1500 4WD

RS5000X (Kit):
Rancho RS5000X 2.5-4" Lift Shocks for 1988-1999 GMC K1500 4WD

RS90000XL (Kit):
Rancho RS90000XL 2.5-4" Lift Shocks for 1988-1999 GMC K1500 4WD

Frequently Asked Questions

Will these shocks lift my GMC Yukon?
No, these shocks do not create lift. They are specifically configured for vehicles already equipped with a 2.5 to 4-inch rear lift kit to ensure the piston operates within the correct travel range.

What is the benefit of the RS5000X twin-tube design?
The twin-tube design is exceptionally durable; the outer reserve tube can take a dent from a rock or debris without affecting the internal piston movement or shock function.

Are boots included with these shocks?
Yes, these Rancho RS5000X shocks include protective boots to shield the piston rod from dirt, mud, and road salt.