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

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

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

Part Number: RS999001 / RS999227

Summary: The Rancho RS9000XL series provides industry-leading versatility for the GMC K2500, featuring a globally recognized 9-position manual adjustment knob. This system allows owners to instantly transition from a soft, compliant street ride to a firm, controlled setting for heavy towing or off-road excursions. Engineered to accommodate vehicles with 2.5 to 4 inches of lift, these shocks solve the compromise between daily comfort and heavy-duty performance by putting damping control directly in the user’s hands.

Features

• 9-Position Tuning: The MyRide manual adjustment knob provides nine distinct levels of damping resistance to ensure the perfect ride quality for any load or terrain.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased fluid capacity to ensure cooler operating temperatures during sustained cycling.
• Nitrogen Gas Charged: High-pressure gas optimization provides a reduction in aeration and foaming to ensure consistent damping performance.
• Heavy-Duty Piston: A 1.25-inch sintered iron piston provides structural integrity and smooth valving travel to ensure long-term durability under harsh conditions.

Technical Specifications

Fitment

• 1988-2000 GMC K2500 4WD
• 1992-1999 GMC Yukon 4WD
• Note: Fits 2 & 4 Door models equipped with Rancho Suspension systems.

What’s Included

• Includes 4 Shocks (Full Set)
• Protective Red Dust Boots
• Required Installation Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology allows for a 400% change in damping force across the 9-position spectrum, offering more adjustability than standard monotube shocks.
• Performance Benefit: Drivers can eliminate “squat” and “sway” while towing by simply clicking the dial to a firmer setting, then returning to a soft setting for empty-bed commuting.

Related Products

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

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

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

RS90000XL (Front):
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

Frequently Asked Questions

How do I adjust the firmness of these shocks?
The RS9000XL features a manual 9-position knob located at the base of the shock body. You simply turn the dial by hand to your desired setting—1 being the softest and 9 being the firmest.

Will these shocks lift my GMC K2500?
No, these shocks do not create lift. They are specifically valved and length-configured to work with vehicles that have an existing 2.5 to 4-inch suspension lift kit installed.

What is the benefit of the large 2.75-inch body?
The oversized body allows for more oil capacity. More oil means the shock can dissipate heat faster, which prevents “shock fade” during heavy towing or off-road use.