Rancho RS90000XL 2.5-4″ Rear Lift Shocks for 1988-2000 GMC K2500 4WD

Description
Rancho RS90000XL 2.5-4″ Rear Lift Shocks for 1988-2000 GMC K2500 4WD

Rancho RS9000XL 2.5-4″ Rear Lift Shocks for 1988-2000 GMC K2500 4WD

Part Number: RS999190

Summary: The Rancho RS9000XL series delivers industry-leading flexibility for GMC K2500 owners who demand total control over their ride quality. Featuring a 9-position manual adjustment knob, these shocks allow you to instantly transition from a soft street setting to a firm profile for heavy towing or off-road excursions. Engineered to accommodate 2.5 to 4 inches of rear lift, they provide the necessary travel and damping force to maintain stability in high-GVWR applications.

Features

• 9-Position Tuning: A manual adjustment knob provides nine levels of damping force to ensure the perfect ride for daily driving, towing, or hauling.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure consistent performance by reducing fluid aeration and heat fade.
• Nitrogen Gas Charged: High-pressure gas optimization provides a faster response rate to ensure the tire maintains consistent contact with the road surface.
• Protective Boot: A heavy-duty red polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against debris.

Technical Specifications

Fitment

• 1988-2000 GMC K2500 4WD
• 1992-1999 GMC Yukon
• Note: 4 Door models with Rancho Suspension.

What’s Included

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

Why Choose This Product?

• Engineering Advantage: Unlike “one-size-fits-all” shocks, the RS9000XL allows you to adjust the internal valving to compensate for changing vehicle weights and terrain.
• Performance Benefit: Eliminates the compromise between comfort and control, giving the driver the ability to firm up the suspension for heavy loads while maintaining a plush ride when unloaded.

Related Products

RS5000X (Rear):
Rancho RS5000X 2.5-4" Rear Lift Shocks for 1988-2000 GMC K2500 4WD

RS5000X (Front):
Rancho RS5000X 2.5-4" Front Lift Shocks for 1988-2000 GMC K2500 4WD

Front Only (Same Series):
Rancho RS90000XL 2.5-4" Front Lift Shocks for 1988-2000 GMC K2500 4WD

RS5000X (Kit):
Rancho RS5000X 2.5-4" Lift Shocks for 1988-2000 GMC K2500 4WD

RS90000XL (Kit):
Rancho RS90000XL 2.5-4" Lift Shocks for 1988-2000 GMC K2500 4WD

Frequently Asked Questions

How do I adjust the settings on these shocks?
These shocks feature an external 9-position knob located at the base of the shock body, allowing for manual tuning without tools or removal.

Will these shocks lift my GMC Yukon?
No, these shocks do not create lift; they are specifically configured for vehicles already equipped with 2.5 to 4 inches of rear lift height.

Can I use these on a 2WD model?
These specific shocks are engineered and valved for GMC K2500 4WD (4-Wheel Drive) applications as specified in the fitment data.