Take command on and off the pavement with the Rancho RS5000X Suspension Shock Absorber RS55381, a REAR damper built around Rancho's exclusive Cross Tuned technology. It installs as a direct-fit replacement for the 2011-2019 Chevrolet Silverado 2500 HD, 2011-2018 Chevrolet Silverado 3500 HD, 2011-2019 GMC Sierra 2500 HD and 2011-2018 GMC Sierra 3500 HD (see the Buyer's Guide tab for engine details). Its rebound valving system and advanced compression phase are tuned to improve overall handling and performance on and off road.
Cross Tuned & Progressive Engagement Valving: custom-tuned for each vehicle to help reduce initial low-speed impacts and minimize a rough ride.
Strong and durable: 16mm nitro-carburized piston rod resists scuffs and corrosion, with double-welded loops at stress areas, a 35mm sintered iron piston and a polyvinyl protective boot.
Handles temperature swings: large twin-tube body filled with all-weather fluid withstands internal temperatures of -40 to 248°F for cooler operation and increased vehicle control.
Reduces fade: nitrogen gas pressurized to 150 PSI minimizes air-to-oil mixing to limit damping fade and foaming.
A polyurethane rebound bumper, rubber bushings and fluon-banded piston smooth ride harshness, and it's backed by Rancho's Limited Lifetime Warranty.
Interchange: RS5381 · N8017
This part cross-references / interchanges with the following part numbers:
RS5381, N8017
Frequently Asked Questions
Which vehicles does the RS55381 fit?
It fits the 2011-2019 Chevrolet Silverado 2500 HD, 2011-2018 Silverado 3500 HD, 2011-2019 GMC Sierra 2500 HD and 2011-2018 GMC Sierra 3500 HD. Check the Buyer's Guide tab to confirm your engine.
Is this a front or rear shock?
This RS55381 is cataloged as a REAR suspension shock absorber for the listed applications.
What is Cross Tuned technology?
It's Rancho's exclusive rebound valving system paired with an advanced compression phase, designed to improve overall handling and performance both on and off road.
How is it built to last?
It features a 16mm nitro-carburized piston rod to resist scuffs and corrosion, double-welded loops at stress areas, a 35mm sintered iron piston and a polyvinyl protective boot.
Should I replace shocks in pairs?
Shocks are sold individually. Replacing both sides on the same axle together is a good practice for balanced, even ride control.
Tame rough pavement and rough trails with the Rancho RS5000X Suspension Shock Absorber RS55254A, a rear shock built around Rancho's exclusive Cross Tuned technology — a rebound valving system and...
WARNING:
These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to
www.P65Warnings.ca.gov.
