Rancho RS90000XL 4″ Front Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Description
Rancho RS90000XL 4″ Front Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Rancho RS9000XL 4″ Front Lift Shocks for 2011-2018 Chevy/GMC 2500HD/3500HD

Part Number: RS999380

Summary: The Rancho RS9000XL series delivers industry-leading versatility for heavy-duty trucks through its advanced 9-position manual tuning system. By allowing drivers to adjust damping levels at each corner, these shocks solve the common conflict between unloaded street comfort and the firm control required for heavy towing or hauling. Specifically configured for 4-inch front lift applications, this set ensures your leveled or lifted Silverado or Sierra maintains optimal geometry and ride quality across any terrain.

Features

• 9-Position Tuning Knob: A manual adjustment dial provides nine distinct levels of damping resistance to ensure the driver can transition from a soft street ride to firm control for heavy towing.
• Large 2.75-in. Body: An increased fluid capacity housing provides improved heat dissipation to ensure consistent performance during high-load hauling or off-road use.
• Nitrogen Gas Pressurized: High-pressure gas charge minimizes air-to-oil mixture (foaming) to provide rapid response times and fade-free damping.
• Heavy-Duty 18mm Nitro-Carburized Rod: A hardened piston rod provides superior structural rigidity and scuff resistance to ensure long-term seal integrity.

Technical Specifications

Fitment

• 2011-2018 Chevy Silverado 2500HD
• 2011-2018 GMC Sierra 3500HD
• Note: Designed for vehicles equipped with 4-inch front lift kits.

What’s Included

• Includes 2 Shocks (Pair)
• Protective Red Dust Boots
• Necessary Mounting Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s MyRide technology allows for a 400% change in damping force between settings 1 and 9, offering more adjustability than standard monotube alternatives.
• Performance Benefit: Eliminates the “stiff” ride associated with heavy-duty lift kits by allowing the user to soften the suspension for daily commuting while retaining the ability to stiffen it for work.

Related Products

RS5000X (Rear):
Rancho RS5000X 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

RS7MT (Front):
Rancho RS7MT 4" Front Lift Shocks for 2011-2018 Chevy Silverado 2500HD

RS5000X (Front):
Rancho RS5000X 4" Front Lift Shocks for 2011-2018 Chevy Silverado 2500HD

RS7MT (Rear):
Rancho RS7MT 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Rear Only (Same Series):
Rancho RS90000XL 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 2011-2018 Chevy Silverado 2500HD

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 2011-2018 Chevy Silverado 2500HD

RS7MT (Kit):
Rancho RS7MT 4" Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Frequently Asked Questions

How do I adjust the damping on these shocks?
The RS9000XL features a manual 9-position knob located at the base of the shock body, allowing you to click through settings without tools.

Will these shocks lift my truck 4 inches?
No, these shocks do not create lift. They are specifically valved and sized to function correctly on vehicles that already have a 4-inch front lift kit installed.

What setting should I use for daily driving?
Most users prefer settings 1-3 for an unloaded daily commute to maximize comfort, while settings 7-9 are recommended for heavy trailers or fifth-wheel applications.