Rancho RS7MT 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Description
Rancho RS7MT 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Rancho RS7MT 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Part Number: RS77381

Summary: The Rancho RS7MT series is engineered for high-performance handling and rapid heat dissipation on heavy-duty GM trucks. Utilizing a sophisticated monotube design, these rear shocks provide the precision and consistent damping required for vehicles configured with a 4-inch lift. By separating the gas and oil with a floating piston, the RS7MT eliminates aeration and shock fade during demanding off-road use or heavy hauling.

Features

• Monotube Construction: A high-pressure nitrogen gas charge provides a lightning-fast response to terrain changes to ensure maximum tire-to-ground contact.
• Internal Floating Piston (IFP): The dedicated dividing piston separates the oil and gas to provide fade-free performance by preventing aeration and cavitation.
• Hardened Nitro-Coated Rod: A durable, corrosion-resistant piston rod provides superior seal protection to ensure long-term reliability in harsh environments.
• Application-Specific Valving: Custom-tuned damping specs provide the necessary rebound control for lifted geometries to ensure a smooth, controlled ride on 2500HD and 3500HD platforms.

Technical Specifications

Fitment

• 2011-2018 Chevy Silverado 2500HD
• 2011-2018 GMC Sierra 3500HD
• Note: Designed specifically for vehicles equipped with 4 inches of rear lift.

What’s Included

• (2) Rancho RS7MT Monotube Rear Shocks
• Necessary Mounting Washers and Bushings
• Protective Dust Boots

Why Choose This Product?

• Engineering Advantage: The RS7MT’s monotube architecture offers superior heat management compared to standard twin-tube shocks, making it the ideal choice for heavy-duty towing and high-speed trail use.
• Performance Benefit: Drivers will experience a significant reduction in body roll and “float,” resulting in a more planted feel whether the truck is empty or fully loaded.

Related Products

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

Front Only (Same Series):
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

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

RS90000XL (Front):
Rancho RS90000XL 4" Front 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

Will these shocks lift my truck?
No, these shocks do not provide lift. They are specifically lengthened and valved to work with a vehicle that has already been modified with a 4-inch rear lift kit.

What is the benefit of a monotube design over a twin-tube?
A monotube shock like the RS7MT features a larger piston and a high-pressure gas charge that reacts faster to bumps and dissipates heat more efficiently, preventing the oil from foaming during intense use.

Do these shocks come with boots?
Yes, these Rancho RS7MT shocks include protective boots to shield the piston rod from rocks, mud, and road debris.