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

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

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

Part Number: RS999227

Summary: The Rancho RS9000XL series is the industry benchmark for adjustable damping control, specifically engineered for the GMC K1500 and Yukon. Featuring a 9-position manual tuning knob, these shocks allow drivers to instantly transition between a soft street ride and a firm setting for heavy towing or off-road excursions. Configured for vehicles with a 4-inch rear lift, these shocks solve the problem of “one size fits all” valving by putting total ride control in the hands of the user.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure the perfect ride quality for any load or terrain.
• Nitrogen Gas Pressurization: High-pressure gas charging provides a consistent response by minimizing aeration and foam buildup to ensure fade-free performance.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased fluid capacity to ensure cooler operating temperatures during heavy-duty use.
• OE-Style Mounts: Heavy-duty bushings and sleeves provide a direct-fit interface to ensure a secure, rattle-free installation on factory mounting points.

Technical Specifications

Fitment

• 1988-1999 GMC K1500 4WD
• 1992-1999 GMC Yukon 4WD
• Note: Designed for use with Rancho Suspension lift kits.

What’s Included

• Includes 2 Shocks
• Protective Shock Boots
• Necessary Bushings and Sleeves

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology allows for a 400% change in damping force, making it the most versatile shock in its class.
• Performance Benefit: Eliminates the compromise between comfort and control, allowing the driver to stiffen the suspension for highway stability or soften it for technical trails.

Related Products

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

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

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

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

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 1988-1999 GMC K1500 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. Simply turn the dial to your desired setting (1 for softest, 9 for firmest).

Will these shocks lift my GMC K1500?
No, these shocks do not create lift. They are specifically valved and sized to accommodate a GMC K1500 that has already been equipped with a 4-inch rear lift kit.

Are these shocks sold as a pair?
Yes, this specific SKU (2xRS999227) includes a pair of rear shocks to cover both the driver and passenger sides.