Rancho RS90000XL 0″ Lift Shocks for 2011-2020 GMC Sierra 3500HD

Description
Rancho RS90000XL 0″ Lift Shocks for 2011-2020 GMC Sierra 3500HD

Rancho RS9000XL 0″ Lift Shocks for 2011-2020 GMC Sierra 3500HD

Part Number: RS999377 / RS999379

Summary: The Rancho RS9000XL series provides the ultimate level of manual control for your GMC Sierra 3500HD. Featuring a 9-position adjustable knob, these shocks allow you to instantly tune your damping profile to match changing loads or terrain. Whether you are daily driving unladen or hauling a heavy gooseneck trailer, this system eliminates the compromise between street comfort and heavy-duty stability.

Features

• 9-Position Tuning: A manual adjustment knob provides nine distinct levels of damping force to ensure precise ride control for towing or off-road use.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased fluid capacity to ensure cooler operating temperatures during heavy hauling.
• Nitrogen Gas Charged: High-pressure gas optimization provides a reduction in aeration and foaming to ensure consistent performance under high-stress cycles.
• Liquid Metallic Finish: A premium zinc-plated coating provides superior corrosion resistance to ensure long-term durability in harsh environments.

Technical Specifications

Fitment

• 2011-2020 GMC Sierra 3500HD
• Note: Configured for vehicles at factory ride height (0″ Lift).

What’s Included

• Includes 4 Shocks (Full Set)
• Protective Shock Boots
• Mounting Hardware (Where Applicable)

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology utilizes a multi-core valving system that allows the user to override the factory damping curve for specific mission profiles.
• Performance Benefit: This set provides the versatility to run a soft setting for daily commuting and a firm setting for maximum sway control while towing.

Related Products

RS5000X (Rear):
Rancho RS5000X 0" Rear Lift Shocks for 2011-2020 GMC Sierra 3500HD

RS5000X (Front):
Rancho RS5000X 0" Front Lift Shocks for 2011-2020 GMC Sierra 3500HD

RS90000XL (Rear):
Rancho RS90000XL 0" Rear Lift Shocks for 2011-2020 GMC Sierra 3500HD

RS7MT (Rear):
Rancho RS7MT 0" Rear Lift Shocks for 2011-2020 GMC Sierra 3500HD

RS7MT (Front):
Rancho RS7MT 0" Front Lift Shocks for 2011-2020 GMC Sierra 3500HD

RS90000XL (Front):
Rancho RS90000XL 0" Front Lift Shocks for 2011-2020 GMC Sierra 3500HD

RS5000X (Kit):
Rancho RS5000X 0" Lift Shocks for 2011-2020 GMC Sierra 3500HD

RS7MT (Kit):
Rancho RS7MT 0" Lift Shocks for 2011-2020 GMC Sierra 3500HD

Frequently Asked Questions

How do I adjust the firmness of these shocks?
Each shock features a 9-position manual knob at the base of the body. Simply turn the dial to a lower number for a softer ride or a higher number for increased firmness during towing.

Will these shocks lift my GMC Sierra 3500HD?
No, these shocks are specifically configured for 0-inches of lift and are designed to replace factory-length dampers while maintaining stock geometry.

Do these come with everything needed for installation?
Yes, this kit includes a full set of four shocks with necessary bushings and boots for a direct bolt-on replacement of your OE units.