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 / RS999190

Summary: The Rancho RS9000XL series defines versatility for heavy-duty applications, featuring a globally recognized 9-position manual adjustment knob. This system allows GMC K2500 owners to instantly transition from a soft street ride to a firm, controlled setting for heavy towing or off-road excursions. Engineered to accommodate 2.5 to 4 inches of lift, these shocks provide the necessary damping control to manage the increased unsprung mass of larger tire and wheel packages.

Features

• MyRide 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping resistance to ensure the driver can tune the ride for specific payloads or terrain.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure cooler operating temperatures during sustained cycling.
• Nitrogen Gas Pressurization: High-pressure gas charge provides a barrier against oil aeration to ensure consistent damping force under aggressive use.
• Heavy-Duty Nitro-Carburized Rod: A 18mm diameter piston rod provides superior structural rigidity and corrosion resistance to ensure long-term seal integrity.

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 Full Set (See Below)
• (2) RS999001 Front Shocks
• (2) RS999190 Rear Shocks
• Red Protective Dust Boots

Why Choose This Product?

• Engineering Advantage: Unlike “one-size-fits-all” shocks, the RS9000XL utilizes a massive body diameter and adjustable valving to handle the specific geometry of a lifted GMC heavy-duty chassis.
• Performance Benefit: Eliminates the compromise between comfort and control; stiffen the shocks for hauling trailers and soften them for daily commuting with a simple turn of a dial.

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

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?
Each shock features a 9-position knob at the base of the body. Turning the knob allows you to manually increase or decrease the damping force without tools.

Will these shocks lift my GMC K2500?
No, these shocks do not create lift. They are specifically configured for vehicles already equipped with a 2.5 to 4-inch suspension lift kit to ensure proper travel length.

Can I use these on a stock height truck?
These units are specifically sized for lifted applications; installing them on a stock height vehicle may result in the shock bottoming out and causing internal damage.