Rancho RS90000XL 2.5-4″ Rear Lift Shocks for 1969-1980 GMC K1500 4WD

Description
Rancho RS90000XL 2.5-4″ Rear Lift Shocks for 1969-1980 GMC K1500 4WD

Rancho RS9000XL 2.5-4″ Rear Lift Shocks for 1969-1980 GMC K1500 4WD

Part Number: RS999112

Summary: The Rancho RS9000XL series is the industry leader in adjustable damping control, specifically engineered for the GMC K1500. Featuring a 9-position manual tuning knob, these shocks allow drivers to instantly transition from a soft street ride to a firm setting for heavy towing or aggressive off-road use. This versatility solves the compromise between daily comfort and the support needed for a 2.5 to 4-inch lifted suspension profile.

Features

• MyRide 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure customized ride control for any terrain or load requirement.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased fluid capacity to ensure cooler operation and consistent performance during heavy-duty use.
• Nitrogen Gas Charged: High-pressure gas optimization provides a faster response rate to ensure the tires maintain maximum contact with the road surface.
• Polyurethane Bushings: Durable polyurethane material provides enhanced durability and reduced deflection to ensure precise handling and long-term service life.

Technical Specifications

Fitment

• 1969-1980 GMC K1500 4WD
• Note: Configured for vehicles with 2.5 to 4 inches of rear lift.

What’s Included

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

Why Choose This Product?

• Engineering Advantage: Rancho’s globally recognized adjustable technology allows for “on-the-fly” tuning without removing the shock, providing a level of customization that static shocks cannot match.
• Performance Benefit: By adjusting the damping to match your specific vehicle weight and tire size, you eliminate “float” and “harshness,” resulting in a safer, more predictable driving experience.

Related Products

RS5000X (Rear):
Rancho RS5000X 2.5-4" Rear Lift Shocks for 1969-1980 GMC K1500 4WD

RS5000X (Front):
Rancho RS5000X 2.5-4" Front Lift Shocks for 1969-1980 GMC K1500 4WD

RS7MT (Rear):
Rancho RS7MT 2.5-4" Rear Lift Shocks for 1969-1980 GMC K1500 4WD

Front Only (Same Series):
Rancho RS90000XL 2.5-4" Front Lift Shocks for 1969-1980 GMC K1500 4WD

RS5000X (Kit):
Rancho RS5000X 2.5-4" Lift Shocks for 1969-1980 GMC K1500 4WD

RS90000XL (Kit):
Rancho RS90000XL 2.5-4" Lift Shocks for 1969-1980 GMC K1500 4WD

Frequently Asked Questions

How do I adjust the settings on these shocks?
The RS9000XL features a clearly marked knob at the base of the shock; simply turn the dial to setting 1 for the softest ride or up to 9 for maximum firmness.

Will these shocks lift my GMC K1500?
No, these shocks do not create lift. They are specifically long-travel dampers configured to work with an existing 2.5 to 4-inch suspension lift kit.

What is the benefit of the larger 2.75-inch body?
The increased oil capacity allows the shock to dissipate heat more effectively than standard shocks, preventing “fade” during prolonged off-road use or when hauling heavy trailers.