Rancho RS90000XL 1.5″ Rear Lift Shocks for 1973-1990 GMC G-2500

Description
Rancho RS90000XL 1.5″ Rear Lift Shocks for 1973-1990 GMC G-2500

Rancho RS90000XL 1.5″ Rear Lift Shocks for 1973-1990 GMC G-2500

Part Number: RS999118

Summary: The Rancho RS90000XL series provides industry-leading adjustability for drivers who demand total control over their vehicle’s ride profile. Featuring a 9-position manual tuning knob, these shocks allow you to instantly transition from a soft street feel to a firm setting for heavy towing or off-road stability. Engineered for the GMC G-2500, these shocks are configured for 1.5-inch rear lift heights, ensuring optimal piston travel and damping performance.

Features

• 9-Position Tuning Knob: A manual adjustment dial provides nine levels of damping force to ensure custom-tailored ride control for various loads and terrains.
• Large Diameter Body: A 2.75-inch heavy-duty body provides increased fluid capacity to ensure cooler operation during high-stress hauling.
• Nitrogen Gas Charged: High-pressure gas displacement provides immediate response to road irregularities to ensure consistent tire contact.
• Protective Boot: A durable poly-vinyl accordion boot provides a physical barrier for the oil seal to ensure longevity against road debris and corrosion.

Technical Specifications

Fitment

• 1973-1990 GMC G-2500
• Note: Configured for vehicles with 1.5-inch rear lift.

What’s Included

• Includes 2 Shocks
• Protective Poly-Vinyl Boots
• Mounting Hardware/Bushings

Why Choose This Product?

• Engineering Advantage: The RS90000XL utilizes a massive shock body and multi-stage valving, providing a significant increase in oil volume and heat dissipation over factory units.
• Performance Benefit: The ability to manually “click” through nine settings means you no longer have to compromise between a comfortable daily commute and the stiffness required for maximum payloads.

Related Products

RS5000X (Front):
Rancho RS5000X 1.5" Front Lift Shocks for 1973-1990 GMC G-2500

RS5000X (Rear):
Rancho RS5000X 1.5" Rear Lift Shocks for 1973-1990 GMC G-2500

RS7MT (Rear):
Rancho RS7MT 1.5" Rear Lift Shocks for 1973-1990 GMC G-2500

Front Only (Same Series):
Rancho RS90000XL 1.5" Front Lift Shocks for 1973-1990 GMC G-2500

RS5000X (Kit):
Rancho RS5000X 1.5" Lift Shocks for 1973-1990 GMC G-2500

RS90000XL (Kit):
Rancho RS90000XL 1.5" Lift Shocks for 1973-1990 GMC G-2500

Frequently Asked Questions

How do I adjust the firmness of these shocks?
The RS90000XL features a manual 9-position knob located at the base of the shock body. Simply turn the dial to your desired setting; lower numbers for a softer ride and higher numbers for increased firmness.

Do these shocks provide the 1.5 inches of lift?
No, these shocks do not create lift. They are specifically valved and sized (extended/compressed lengths) to function correctly on vehicles that have already been equipped with 1.5 inches of rear lift.

Is any special tooling required for installation?
No, these shocks are designed as a direct bolt-on replacement for the OE-style mounts using basic hand tools.