Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Description
Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 2500HD

Part Number: RS55381

Summary: The Rancho RS5000X series is engineered to provide a significant upgrade in ride quality and durability for heavy-duty applications. Designed specifically for the Chevy Silverado and GMC Sierra 2500HD/3500HD, these gas-pressurized shocks utilize a cross-tuned twin-tube design to manage the increased unsprung mass of larger tires and 4-inch lift heights. By reducing aeration and shock fade, the RS5000X delivers a consistent, smooth street feel while maintaining the ruggedness required for off-road environments and heavy hauling.

Features

• Cross-Tuned Technology: A specialized valve system provides a unique blend of low-speed comfort and high-speed control to ensure stability during aggressive maneuvers.
• Gas Pressurization: A high-pressure nitrogen charge provides a consistent damping force to ensure minimized aeration and foaming in demanding conditions.
• 16mm Nitro-Carburized Rod: The heavy-duty hardened piston rod provides superior scuff resistance and structural integrity to ensure long-term seal life.
• Protective Boot: A durable polyvinyl accordion boot provides a physical barrier for the shock rod to ensure protection against rocks, salt, and debris.

Technical Specifications

Fitment

• 2011-2018 Chevy Silverado 2500HD
• 2011-2018 GMC Sierra 3500HD
• Note: Configured for vehicles with 4-inch rear lift.

What’s Included

• Includes 2 Shocks (Pair)
• Mounting Hardware (Where Applicable)
• Protective Dust Boots

Why Choose This Product?

• Engineering Advantage: Rancho’s twin-tube design features a larger 2.25-inch body, allowing for increased fluid capacity and cooler operating temperatures than standard OE shocks.
• Performance Benefit: Drivers will experience a reduction in “body roll” and “harshness” typically associated with lifted heavy-duty trucks, resulting in a more composed and comfortable ride.

Related Products

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

Front Only (Same Series):
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

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 4 inches?
No, these shocks do not create lift. They are specifically valved and length-tuned to work with a vehicle that already has a 4-inch rear lift kit installed.

Is this a single shock or a pair?
This SKU (2xRS55381_n94) includes a pair (2) of rear shocks.

What is the benefit of the gas pressurization in the RS5000X?
The nitrogen gas charge keeps the internal hydraulic fluid under pressure, which prevents the air bubbles (foaming) that cause shocks to lose their damping effectiveness during bumpy or high-speed driving.