Rancho RS7MT 4″ Rear Lift Shocks for 2011-2018 GMC Sierra 2500HD

Description
Rancho RS7MT 4″ Rear Lift Shocks for 2011-2018 GMC Sierra 2500HD

Rancho RS7MT 4″ Rear Lift Shocks for 2011-2018 GMC Sierra 2500HD

Part Number: RS77381

Summary: The Rancho RS7MT series is engineered for high-performance handling and rapid heat dissipation on heavy-duty trucks. Utilizing a sophisticated monotube design, these rear shocks provide the precision response needed to eliminate body roll and maintain stability on the GMC Sierra 2500HD/3500HD. Configured specifically for vehicles with a 4-inch rear lift, they ensure the piston remains in the optimal stroke zone for both highway towing and off-road excursions.

Features

• Monotube Construction: A high-pressure nitrogen gas charge provides a faster damping response to ensure consistent control on uneven terrain.
• Internal Dividing Piston: The full-floating piston separates the gas and oil to prevent aeration and foaming to ensure fade-free performance during heavy hauling.
• 14mm Hardened Chrome Rod: A heavy-duty nitro-carburized rod provides superior scuff resistance and durability to ensure long-term seal integrity.
• Sealing System: An integrated dirt wiper and multi-lip seal provide a clean running surface for the internal components to ensure reliable operation in harsh environments.

Technical Specifications

Fitment

• 2011-2018 GMC Sierra 2500HD
• 2011-2018 GMC Sierra 3500HD
• Note: Designed for vehicles equipped with 4″ of rear lift height.

What’s Included

• Includes 2 Shocks
• Mounting Hardware (where applicable)
• Installation Instructions

Why Choose This Product?

• Engineering Advantage: The RS7MT utilizes a high-pressure monotube architecture that reacts significantly faster than standard twin-tube shocks, making it ideal for the high-sprung weight of HD trucks.
• Performance Benefit: Drivers will experience a noticeable reduction in “truck sway” and improved steering feedback, especially when the vehicle is under load or navigating washboard roads.

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

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

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

RS90000XL (Front):
Rancho RS90000XL 4" Front 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

Will these shocks lift my truck?
No, these shocks do not provide lift. They are specifically valved and length-adjusted to function correctly on a truck that already has a 4-inch rear lift kit installed.

What is the benefit of the monotube design over a standard shock?
The monotube design uses a single cylinder and a high-pressure gas charge to react instantly to road inputs, providing better cooling and more precise valving than traditional twin-tube shocks.

Are these sold as a pair?
Yes, based on the SKU configuration 2xRS77381_n605, this package includes 2 rear shocks.