Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 GMC Sierra 2500HD

Description
Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 GMC Sierra 2500HD

Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 GMC Sierra 2500HD

Part Number: RS55381

Summary: The Rancho RS5000X series utilizes an innovative cross-tuned twin-tube design to enhance the ride quality of your GMC Sierra 2500HD/3500HD. Engineered specifically for heavy-duty applications with a 4-inch rear lift, these shocks balance rugged durability with smooth street performance. The gas-pressurized twin-tube construction provides excellent dent resistance and consistent damping, making it the ideal solution for drivers seeking a reliable upgrade for their lifted work truck or daily driver.

Features

• Cross-Tuned Technology: A unique valve system provides progressive engagement at varying speeds to ensure controlled handling on rough terrain and comfort on the highway.
• Gas Pressurized Twin-Tube: The nitrogen-charged 2.25-inch body provides increased fluid capacity to ensure cooler operation and reduced fade during heavy hauling.
• Protective Boot: A heavy-duty black polyvinyl accordion boot provides a physical barrier for the piston rod to ensure long-term seal integrity against road debris.
• Sintered Iron Piston: The 35mm sintered iron piston provides structural rigidity and increased surface area to ensure precise damping response.

Technical Specifications

Fitment

• 2011-2018 GMC Sierra 2500HD
• 2011-2018 GMC Sierra 3500HD
• Note: Configured for vehicles with 4-inches of rear lift.

What’s Included

• Includes 2 Shocks (Pair)
• Protective Dust Boots
• Installation Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s twin-tube design is specifically valved to mitigate the harshness often associated with heavy-duty leaf spring suspensions.
• Performance Benefit: Improved stability and reduced body roll provide the driver with more confidence when navigating uneven terrain or towing heavy loads.

Related Products

Front Only (Same Series):
Rancho RS5000X 4" Front 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

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 create lift. They are specifically lengthened to accommodate GMC Sierra models that have already been modified with a 4-inch rear lift kit.

What is the benefit of the RS5000X gas charging?
The nitrogen gas charge minimizes the aeration of the shock fluid, which prevents the “spongy” feeling often found in standard shocks during rapid cycling.

Are these sold as a pair?
Yes, this specific SKU (2xRS55381) includes a pair of two shocks for the rear axle.