Rancho RS90000XL 4″ Rear Lift Shocks for 1988-2000 GMC K2500 4WD

Description
Rancho RS90000XL 4″ Rear Lift Shocks for 1988-2000 GMC K2500 4WD

Rancho RS9000XL 4″ Rear Lift Shocks for 1988-2000 GMC K2500 4WD

Part Number: RS999227

Summary: The Rancho RS9000XL series delivers industry-leading versatility for drivers who demand total control over their ride quality. Featuring a 9-position manual adjustment knob, these shocks allow you to instantly tune your GMC K2500’s damping from soft for daily commuting to firm for heavy towing or off-road excursions. Engineered to accommodate a 4-inch rear lift, these shocks provide the extra travel and fluid capacity needed to maintain stability and comfort on lifted applications.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping to ensure the driver can customize the ride for varying loads or terrain.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure cooler operating temperatures during heavy-duty use.
• Nitrogen Gas Charged: High-pressure gas displacement provides a consistent response by minimizing aeration to ensure fade-free performance.
• Protective Boot: A heavy-duty polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against road debris.

Technical Specifications

Fitment

• 1988-2000 GMC K2500 4WD
• 1992-1999 GMC Yukon
• Note: Configured for vehicles with 4-inch rear lift; compatible with Rancho Suspension systems.

What’s Included

• Includes 2 Shocks (Pair)
• Protective Polyvinyl Boots
• Mounting Hardware (where applicable)

Why Choose This Product?

• Engineering Advantage: The RS9000XL is one of the most versatile shocks on the market, utilizing a tri-tube design and a manual bypass valve that allows for on-the-fly valving changes without removing the shock.
• Performance Benefit: Eliminates the compromise between street comfort and towing stability by allowing the user to stiffen the suspension only when the payload requires it.

Related Products

RS5000X (Rear):
Rancho RS5000X 4" Rear Lift Shocks for 1988-2000 GMC K2500 4WD

RS5000X (Front):
Rancho RS5000X 4" Front Lift Shocks for 1988-2000 GMC K2500 4WD

Front Only (Same Series):
Rancho RS90000XL 4" Front Lift Shocks for 1988-2000 GMC K2500 4WD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 1988-2000 GMC K2500 4WD

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 1988-2000 GMC K2500 4WD

Frequently Asked Questions

How do I adjust the firmness of these shocks?
These shocks feature a 9-position knob located at the base of the shock body; simply turn the dial to your desired setting to increase or decrease damping resistance.

Will these shocks lift my GMC K2500?
No, these shocks do not create lift. They are specifically long-travel shocks configured for vehicles that already have a 4-inch rear lift kit installed.

What is the benefit of the larger 2.75-inch body?
The larger body houses more oil than a standard shock, which helps dissipate heat faster and prevents the shock from “fading” or losing effectiveness during hard use.