Rancho RS90000XL 4″ Front Lift Shocks for 2011-2018 GMC Sierra 2500HD

Description
Rancho RS90000XL 4″ Front Lift Shocks for 2011-2018 GMC Sierra 2500HD

Rancho RS9000XL 4″ Front Lift Shocks for 2011-2018 GMC Sierra 2500HD

Part Number: RS999380

Summary: The Rancho RS9000XL series provides industry-leading versatility for heavy-duty trucks through its globally recognized adjustable damping technology. Designed for the GMC Sierra 2500HD/3500HD, these shocks feature a 9-position manual tuning knob that allows drivers to instantly switch between a soft street ride and a firm setting for heavy towing or hauling. This Tier 2 adjustable shock solves the “one size fits all” damping problem by putting ride control directly in the hands of the user.

Features

• 9-Position Tuning Knob: A manual adjustment dial provides nine levels of damping force to ensure the perfect balance between comfort and control for any load or terrain.
• Large Shock Body: A 2.75-inch diameter reserve tube provides increased oil capacity to ensure consistent performance and reduced fade during high-stress operation.
• Nitrogen Gas Pressurization: High-pressure gas charging provides immediate response to road imperfections to ensure the tire maintains a consistent contact patch.
• Protective Boot: A durable poly-vinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against road debris.

Technical Specifications

Fitment

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

What’s Included

• Includes 2 Shocks
• Protective Dust Boots
• Mounting Hardware (where applicable)

Why Choose This Product?

• Engineering Advantage: The RS9000XL is engineered with a massive shock body and multi-stage valving that handles the extreme weight demands of the GMC HD platform while offering user-definable damping.
• Performance Benefit: Drivers gain the ability to stiffen the suspension for stable towing on the highway or soften it for daily unladen commuting, eliminating the harshness typically associated with heavy-duty lift shocks.

Related Products

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

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

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

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

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

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

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

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

Frequently Asked Questions

How do I adjust the firmness of these shocks?
The RS9000XL features a 9-position knob located at the base of the shock body. Simply turn the dial to setting 1 for the softest ride or setting 9 for maximum firmness.

Will these shocks lift my truck?
No, these shocks do not create lift. They are specifically configured for GMC Sierra HD models that already have a 4-inch front lift kit installed.

Are these shocks sold as a pair?
Yes, this specific SKU (2xRS999380_n605) includes a pair of two shocks for the front of your vehicle.