Rancho RS90000XL 4″ Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Description
Rancho RS90000XL 4″ Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Rancho RS9000XL 4″ Lift Shocks for 2011-2018 Chevy/GMC Silverado/Sierra 3500HD

Part Number: RS999380 / RS999381

Summary: The Rancho RS9000XL series provides the ultimate in ride control for the 2011-2018 Chevy Silverado and GMC Sierra 3500HD. Featuring a 9-position manual adjustment knob, these shocks allow drivers to instantly tune their damping profile from soft to firm to accommodate varying payloads or towing requirements. Engineered for vehicles with a 4-inch lift, this set delivers a custom-tailored ride quality that transitions seamlessly from comfortable highway cruising to heavy-duty work applications.

Features

• MyRide 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping control to ensure the perfect balance between comfort and control for any load.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased fluid capacity to ensure cooler operating temperatures during heavy towing or hauling.
• Nitrogen Gas Charged: High-pressure gas optimization provides immediate response to road imperfections to ensure consistent tire-to-road contact.
• Polyurethane Bushings: High-durability polyurethane material provides enhanced road feel and longevity to ensure quiet operation under heavy stress.

Technical Specifications

Fitment

• 2011-2018 Chevy Silverado 3500HD
• 2011-2018 GMC Sierra 3500HD
• Note: Designed specifically for vehicles equipped with 4-inch suspension lift kits.

What’s Included

• Includes 4 Shocks (Full Front and Rear Set)
• Installation Hardware
• Protective Red Dust Boots

Why Choose This Product?

• Engineering Advantage: Unlike “one-size-fits-all” shocks, the RS9000XL utilizes a tri-tube design and adjustable valving that adapts to the specific weight and cargo needs of a 1-ton truck.
• Performance Benefit: Eliminates the “harsh” ride typically associated with unloaded heavy-duty trucks while providing the stiffness needed to prevent swaying when towing a trailer.

Related Products

RS5000X (Front):
Rancho RS5000X 4" Front Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS5000X (Rear):
Rancho RS5000X 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS7MT (Front):
Rancho RS7MT 4" Front Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS7MT (Rear):
Rancho RS7MT 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS90000XL (Rear):
Rancho RS90000XL 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS90000XL (Front):
Rancho RS90000XL 4" Front Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS7MT (Kit):
Rancho RS7MT 4" Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Frequently Asked Questions

How do I adjust the settings on these shocks?
The shocks feature an easy-to-turn 9-position knob located at the base of the shock body, allowing for manual tuning without tools.

Will these shocks fit a stock height truck?
No, these specific part numbers are length-calibrated for vehicles with 4 inches of suspension lift.

Are the boots included with the shocks?
Yes, these shocks come standard with Rancho’s signature red protective boots to shield the piston rod from debris.