Rancho RS90000XL 0″ Lift Shocks for 1988-1999 GMC K1500 4WD

Description
Rancho RS90000XL 0″ Lift Shocks for 1988-1999 GMC K1500 4WD

Rancho RS9000XL 0″ Lift Shocks for 1988-1999 GMC K1500 4WD

Part Number: RS999150 / RS999190

Summary: The Rancho RS9000XL series delivers industry-leading flexibility for the GMC K1500 and Yukon, featuring a sophisticated 9-position manual tuning knob. This Tier 2 adjustable technology allows owners to instantly transition from a soft, compliant street ride to a firm, controlled setting for heavy towing or off-road use. Engineered for stock height applications, these shocks solve the compromise between daily comfort and utility performance by putting damping control directly in the driver’s hands.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping resistance to ensure the vehicle is perfectly calibrated for varying payloads and terrain.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure consistent performance by reducing fluid aeration during heavy cycling.
• Nitrogen Gas Charged: High-pressure gas optimization provides immediate response to road irregularities to ensure tire-to-ground contact is maintained.
• Polyurethane Bushings: High-durability polyurethane material provides superior resistance to environmental degradation to ensure long-term pivot point integrity.

Technical Specifications

Fitment

• 1988-1999 GMC K1500 4WD
• 1992-1999 GMC Yukon (2-Door & 4-Door models)
• Note: Fits 4WD models only at 0″ of lift.

What’s Included

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

Why Choose This Product?

• Engineering Advantage: Unlike standard fixed-rate shocks, the RS9000XL utilizes a bypass-valve design within the adjustment mechanism to provide a truly custom ride profile.
• Performance Benefit: Drivers gain the ability to firm up the rear suspension when hauling trailers, eliminating the “floaty” feeling common in older GMT400 platforms.

Related Products

RS5000X (Front):
Rancho RS5000X 0" Front Lift Shocks for 1988-1999 GMC K1500 4WD

RS5000X (Rear):
Rancho RS5000X 0" Rear Lift Shocks for 1988-1999 GMC K1500 4WD

RS90000XL (Rear):
Rancho RS90000XL 0" Rear Lift Shocks for 1988-1999 GMC K1500 4WD

RS7MT (Front):
Rancho RS7MT 0" Front Lift Shocks for 1988-1999 GMC K1500 4WD

RS90000XL (Front):
Rancho RS90000XL 0" Front Lift Shocks for 1988-1999 GMC K1500 4WD

RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for 1988-1999 GMC K1500 4WD

Frequently Asked Questions

How do I adjust the firmness of these shocks?
Each shock features a red 9-position knob at the base; simply turn the dial to your preferred setting (1 for softest, 9 for firmest) without needing tools.

Will these shocks lift my GMC Yukon?
No, these shocks are configured for a 0-inch lift and are designed to replace factory-length dampers while maintaining stock ride height.

Are these shocks sold as a complete set for my truck?
Yes, this specific SKU includes a full set of four shocks (two front and two rear) specifically valved for the 1988-1999 GMC 4WD chassis.