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

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

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

Part Number: RS999001 / RS999112

Summary: The Rancho RS9000XL series provides industry-leading versatility for classic GMC K1500 owners who demand performance across diverse terrains. Featuring a globally recognized 9-position manual adjustment knob, these shocks allow you to instantly tune your damping profile from soft street cruising to firm off-road control. Engineered to accommodate 2.5 to 4 inches of lift, this set ensures your vintage 4WD maintains optimal tire contact and stability regardless of load or trail conditions.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure custom-tailored ride control for towing, hauling, or off-roading.
• Large Diameter Body: The 2.75-inch heavy-duty body provides increased fluid capacity to ensure cooler operation and reduced fade during extreme use.
• Nitrogen Gas Charged: High-pressure gas optimization provides immediate response to road irregularities to ensure consistent performance and reduced aeration.
• Protective Boot: A durable red polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against trail debris.

Technical Specifications

Fitment

• 1969-1980 GMC K1500 4WD
• Note: 2 & 4 Door models specifically configured for use with Rancho Suspension systems.

What’s Included

• (2) Rancho RS9000XL Series Front Shocks
• (2) Rancho RS9000XL Series Rear Shocks
• (4) Red Dust Boots
• All Required Mounting Bushings and Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology bypasses the “one size fits all” damping approach, giving the user mechanical control over valving sensitivity.
• Performance Benefit: Eliminates the compromise between daily driver comfort and off-road stiffness, allowing for a plush ride on the highway and a rigid, controlled platform on the trail.

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

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

RS90000XL (Front):
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

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. Simply turn the dial to your desired setting; lower numbers offer a softer ride, while higher numbers increase firmness for towing or aggressive off-roading.

Will these shocks lift my GMC K1500?
No, these shocks do not create lift. They are specifically valved and extended in length to function correctly on vehicles already equipped with a 2.5″ to 4″ lift kit.

Are these shocks compatible with factory suspension?
These specific part numbers are designed for use with Rancho Suspension lift systems on 1969-1980 GMC K1500 models to ensure proper travel and clearance.