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

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

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

Part Number: RS999227

Summary: The Rancho RS9000XL series delivers industry-leading versatility for drivers who demand total control over their vehicle’s damping profile. Featuring a 9-position manual adjustment knob, these shocks allow you to instantly tune your suspension for varying loads, from daily commuting to heavy towing or off-road excursions. Specifically configured for 4-inch lifts, these larger-bodied shocks provide increased fluid capacity to maintain consistent performance under high-stress conditions.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure the perfect ride quality for street, towing, or off-road applications.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure cooler operating temperatures and reduced fade during heavy use.
• Nitrogen Gas Charged: High-pressure gas charging provides immediate response to road irregularities to ensure optimized tire-to-surface contact.
• Protective Boot: A heavy-duty red polyvinyl accordion boot provides a physical barrier for the oil seal and piston rod to ensure long-term durability in harsh environments.

Technical Specifications

Fitment

• 1988-1999 Chevy K1500 4WD
• 1992-1999 GMC Yukon
• Note: Configured for use with Rancho Suspension systems.

What’s Included

• Includes 2 Shocks
• Protective Red Dust Boots
• Required Mounting Hardware

Why Choose This Product?

• Engineering Advantage: The RS9000XL is one of the most adjustable shock series in the world, utilizing a tri-tube design and a massive piston for maximum fluid displacement.
• Performance Benefit: Eliminates the compromise between a stiff towing ride and a soft street ride by putting the tuning capability directly in the driver’s hands.

Related Products

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

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

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

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

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 1988-1999 Chevy K1500 4WD

Frequently Asked Questions

How do I adjust the firmness of these shocks?
The RS9000XL features a 9-position knob located at the base of the shock body. Simply turn the dial to your desired setting, with 1 being the softest and 9 being the firmest.

Will these shocks lift my Chevy K1500?
No, these shocks do not create lift. They are specifically valved and length-matched for vehicles already equipped with a 4-inch suspension lift kit.

What is the benefit of the larger shock body?
The 2.75-inch body holds more hydraulic fluid than standard shocks, which helps dissipate heat more efficiently, preventing the “fading” feeling during prolonged off-road use.