Rancho RS5000X 1.5″ Rear Lift Shocks for 1987-1989 Chevy R-20 2WD

Description
Rancho RS5000X 1.5″ Rear Lift Shocks for 1987-1989 Chevy R-20 2WD

Rancho RS5000X 1.5″ Rear Lift Shocks for 1987-1989 Chevy R-20 2WD

Part Number: RS55118

Summary: The Rancho RS5000X series leverages advanced CrossTune technology to provide a significant upgrade over factory damping for your Chevy R-20. Engineered for vehicles configured with a 1.5-inch rear lift, these shocks utilize a progressive engagement valving system to balance street comfort with off-road durability. The twin-tube gas pressurized design ensures consistent performance by reducing aeration, making it an ideal solution for drivers seeking a rugged, reliable shock for daily driving and light hauling.

Features

• CrossTune Technology: A unique progressive valving system provides a custom-tuned damping curve to ensure smooth ride quality across varying terrain.
• Twin-Tube Gas Pressure: The 150-PSI nitrogen gas charge provides a quicker response time and reduced fluid foaming to ensure consistent damping performance.
• Protective Boot: The included red polyvinyl accordion boot provides a physical barrier for the shock rod to ensure protection against rocks, dirt, and debris.
• All-Weather Fluid: Specialized synthetic oil contains friction modifiers to provide reduced internal friction to ensure smooth rod stroke in extreme temperature ranges.

Technical Specifications

Fitment

• 1987-1989 Chevy R-20 2WD
• Note: Configured for vehicles with 1.5″ of rear lift height.

What’s Included

• Includes 2 Shocks (Pair)
• Protective Red Dust Boots
• Required Installation Bushings

Why Choose This Product?

• Engineering Advantage: Rancho’s CrossTune system features a larger 2.25-inch diameter reserve tube, allowing for increased oil capacity and better heat dissipation compared to standard shocks.
• Performance Benefit: The transition from OE shocks to the RS5000X results in reduced body roll and improved stability when navigating uneven surfaces or carrying loads.

Related Products

Front Only (Same Series):
Rancho RS5000X 1.5" Front Lift Shocks for 1987-1989 Chevy R-20 2WD

RS7MT (Rear):
Rancho RS7MT 1.5" Rear Lift Shocks for 1987-1989 Chevy R-20 2WD

RS90000XL (Front):
Rancho RS90000XL 1.5" Front Lift Shocks for 1987-1989 Chevy R-20 2WD

RS90000XL (Rear):
Rancho RS90000XL 1.5" Rear Lift Shocks for 1987-1989 Chevy R-20 2WD

RS90000XL (Kit):
Rancho RS90000XL 1.5" Lift Shocks for 1987-1989 Chevy R-20 2WD

RS5000X (Kit):
Rancho RS5000X 1.5" Lift Shocks for 1987-1989 Chevy R-20 2WD

Frequently Asked Questions

Will these shocks lift my Chevy R-20?
No, these shocks do not create lift. They are specifically valved and sized to work with a vehicle that has already been equipped with 1.5 inches of rear lift height.

What is the benefit of the gas pressurization in this shock?
The 150-PSI nitrogen gas charge helps prevent “fade” by keeping the internal oil from foaming (aeration) during rapid movements, ensuring the shock maintains its damping force.

Are these shocks sold as a pair?
Yes, this SKU (2xRS55118) includes two rear shocks to complete the rear axle of your vehicle.