Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Description
Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Rancho RS5000X 4″ Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Part Number: RS55381

Summary: The Rancho RS5000X series is engineered to provide a significant upgrade in ride quality and durability for your heavy-duty truck. Utilizing a sophisticated twin-tube gas-pressurized design, these shocks are specifically configured for vehicles with a 4-inch rear lift. By prioritizing smooth street comfort and consistent off-road performance, the RS5000X effectively manages the unsprung weight of the Silverado and Sierra 3500HD chassis to eliminate harshness on varied terrain.

Features

• Cross-Tuned Technology: A unique valve system provides a custom-tuned damping curve to ensure balanced handling during both on-road cruising and off-road excursions.
• Gas Pressurization: High-pressure nitrogen gas charge provides a reduction in oil foaming and aeration to ensure consistent damping force under heavy load.
• Twin-Tube Body: A 2.25-inch diameter reserve tube provides increased oil capacity and dent resistance to ensure long-term reliability in harsh environments.
• Protective Boot: A heavy-duty red polyvinyl accordion boot provides a physical barrier for the shock rod to ensure the seal remains free from debris and stone chips.

Technical Specifications

Fitment

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

What’s Included

• Includes 2 Shocks (Pair)
• Protective Red Dust Boots
• Necessary Bushings and Mounting Hardware

Why Choose This Product?

• Engineering Advantage: Rancho’s application-specific tuning accounts for the high GVWR of 3500HD models, preventing the “skipping” feel common with generic shocks.
• Performance Benefit: Improved tire-to-road contact and reduced body roll provide the driver with increased confidence when towing or hauling heavy payloads.

Related Products

Front Only (Same Series):
Rancho RS5000X 4" Front Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS7MT (Front):
Rancho RS7MT 4" Front Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS7MT (Rear):
Rancho RS7MT 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS90000XL (Rear):
Rancho RS90000XL 4" Rear Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS90000XL (Front):
Rancho RS90000XL 4" Front Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS5000X (Kit):
Rancho RS5000X 4" Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS90000XL (Kit):
Rancho RS90000XL 4" Lift Shocks for 2011-2018 Chevy Silverado 3500HD

RS7MT (Kit):
Rancho RS7MT 4" Lift Shocks for 2011-2018 Chevy Silverado 3500HD

Frequently Asked Questions

Will these shocks lift my truck?
No, these shocks do not create lift. They are specifically lengthened to accommodate a truck that has already been equipped with a 4-inch rear lift kit.

Is the boot included with the RS55381?
Yes, this part number includes Rancho’s signature red protective boot to safeguard the piston rod from road salt and debris.

What is the benefit of the twin-tube design on a 3500HD?
The twin-tube construction is highly durable; if the outer body is dented by a rock or debris, the inner cylinder remains functional, ensuring you aren’t left stranded during work or travel.