Tame the ride and keep your heavy-duty truck planted on and off the pavement with the Rancho RS5000X shock absorber (RS55381), a rear-position Rancho shock absorber built around Rancho's exclusive Cross Tuned technology. Its rebound valving system and advanced compression phase are designed to improve overall handling and performance both on and off road, and it drops in 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.
A polyurethane rebound bumper and rubber bushings help absorb harshness, while the fluon-banded piston and a low-friction, self-lubricating seal support quicker rebound and smoother compression. Backed by Rancho's Limited Lifetime Warranty. Sold individually; replacing shocks in pairs is recommended for balanced ride control.
Interchange: RS5381 · N8017
This part cross-references / interchanges with the following part numbers:
Does this Rancho shock absorber fit my truck?
It's a direct-fit replacement for 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. See the Buyer's Guide tab to confirm.
What position does the RS55381 mount in?
This shock is cataloged for the rear position on the listed trucks.
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.
Is the RS55381 gas pressurized?
Yes. It's nitrogen gas pressurized to 150 PSI to minimize air-to-oil mixing and help reduce damping fade and foaming.
Do I need to replace both shocks at once?
This Rancho absorber is sold individually. Replacing shocks as a pair on the same axle is recommended for balanced, even ride control.
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.
