Rancho RS7MT 1-2.5″ Front Lift Shocks for 2011-2020 GMC Sierra 3500HD

Description
Rancho RS7MT 1-2.5″ Front Lift Shocks for 2011-2020 GMC Sierra 3500HD

Rancho RS7MT 1-2.5″ Front Lift Shocks for 2011-2020 GMC Sierra 3500HD

Part Number: RS77378

Summary: The Rancho RS7MT Monotube series is engineered to provide precision handling and rapid response for the 2011-2020 GMC Sierra 3500HD. Specifically configured for 1-2.5 inches of front lift, these shocks utilize a high-pressure nitrogen gas charge to eliminate aeration and maintain consistent damping during aggressive use. The monotube design ensures linear performance and high-speed stability, making them the ideal solution for heavy-duty trucks navigating both highway transit and demanding work sites.

Features

• Monotube Design: A high-pressure nitrogen gas charge and 1.97-inch (50mm) body provides rapid heat dissipation to ensure zero aeration and fade-free performance.
• Hardened Nitro-Coated Rod: The 14mm piston rod provides superior corrosion resistance and structural integrity to ensure long-term durability in harsh environments.
• Internal Floating Piston (IFP): A dedicated dividing piston separates the gas and oil to provide precise valving response to ensure a stable and controlled ride.
• OE-Style Mounts: The application-specific mounting hardware provides a direct-fit installation to ensure a secure connection to the factory chassis.

Technical Specifications

Fitment

• 2011-2020 GMC Sierra 3500HD
• Note: Not for use with aftermarket shock spacers or relocation brackets. Includes 2 Shocks.

What’s Included

• (2) Rancho RS77378 Front Shocks
• Required Mounting Hardware
• Protective Dust Boots

Why Choose This Product?

• Engineering Advantage: The RS7MT series focuses on thermal efficiency and hydraulic precision, utilizing a high-pressure gas charge that outperforms standard twin-tube shocks in heavy-duty applications.
• Performance Benefit: Drivers experience reduced body roll and improved steering feedback, especially when the vehicle is leveled or lifted up to 2.5 inches.

Related Products

RS5000X (Front):
Rancho RS5000X 1-2.5" Front Lift Shocks for 2011-2020 GMC Sierra 3500HD

Frequently Asked Questions

Do these shocks provide a lift to my GMC Sierra 3500HD?
No, these shocks do not create lift. They are specifically configured to accommodate vehicles that already have 1 to 2.5 inches of front-end lift through torsion key adjustments or other suspension modifications.

What is the benefit of the Monotube design over the factory shocks?
The Monotube design features a single-wall tube that dissipates heat faster than twin-tube designs and uses a floating piston to prevent oil foaming, resulting in more consistent control during heavy-duty use.

Can I use these with my factory shock spacers?
No, these shocks are not for use with aftermarket shock spacers or relocation brackets as per the manufacturer’s fitment guidelines.