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

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

Rancho RS9000XL 4″ Front Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Part Number: RS999380

Summary: The Rancho RS9000XL series delivers industry-leading versatility for heavy-duty trucks through its globally recognized adjustable damping technology. Featuring a 9-position manual tuning knob, these shocks allow owners to instantly transition from a plush street ride to a firm setting optimized for heavy towing or off-road excursions. Specifically configured for 4-inch lifted applications, these shocks provide the necessary travel and control required for high-clearance Chevy and GMC 3500HD platforms.

Features

• 9-Position Tuning Knob: Manual adjustment logic provides nine distinct levels of damping force to ensure the vehicle is perfectly tuned for varying payloads or terrain.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure cooler operating temperatures during heavy work cycles.
• Nitro-Gas Charging: High-pressure nitrogen gas provides a barrier against oil foaming to ensure consistent damping performance under rapid cycling.
• Polyurethane Bushings: Performance-grade material provides enhanced durability compared to standard rubber to ensure long-term pivot point reliability.

Technical Specifications

Fitment

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

What’s Included

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

Why Choose This Product?

• Engineering Advantage: The RS9000XL is a tri-tube design that prioritizes user-adjustable ride control, allowing one shock to serve multiple vehicle roles from daily driving to fifth-wheel towing.
• Performance Benefit: Eliminates the compromise between comfort and control by putting the damping profile directly in the hands of the driver.

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

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

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

RS90000XL (Kit):
Rancho RS90000XL 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 firmness of these shocks?
These shocks feature a manual 9-position knob located at the base of the shock body. Simply turn the dial to a lower number for a softer ride or a higher number for firmer damping.

Do these shocks provide 4 inches of lift?
No, these shocks do not create lift. They are specifically engineered with the correct extended and compressed lengths to function on a vehicle that already has a 4-inch suspension lift installed.

Are the boots included with the shocks?
Yes, these Rancho RS9000XL shocks include the signature red protective boots to help shield the piston rod from debris and contaminants.