Rancho RS55381 Shock Absorber - Rear

Overview of Rancho RS5000X Suspension Shock Absorber

The Rancho RS5000X Suspension Shock Absorber (Part Number RS55381) is engineered for heavy-duty trucks like the Chevrolet Silverado 2500 HD and 3500 HD, as well as the GMC Sierra 2500 HD and 3500 HD. Designed to provide reliable damping performance, this shock absorber helps maintain vehicle stability and control under demanding conditions.

• Extended length of 29.63 inches and compressed length of 17.87 inches
• Includes dust shield for enhanced durability
• Features extended bumper stop for improved suspension travel protection
• Loop bushing and sleeve mounts on both upper and lower ends (9/16" sleeve ID x 1.5/8" sleeve OAL)
• Reserve tube diameter of 2.251 inches for consistent hydraulic performance
• Travel length of 11.76 inches to accommodate suspension movement

Detailed Product Features and Specifications

The RS55381 shock absorber from Rancho’s RS5000X line is built with specific dimensions to fit heavy-duty Chevrolet and GMC trucks. Its extended length of 29.63 inches and compressed length of 17.87 inches ensure proper fitment and suspension travel compatibility. The inclusion of a dust shield protects internal components from dirt and debris, extending the service life of the shock. The extended bumper stop provides additional cushioning during suspension compression, reducing wear on suspension components. Both upper and lower mounts use loop bushing and sleeve mounts with a 9/16" sleeve inner diameter and 1.5/8" outer sleeve length, ensuring secure attachment and reducing noise and vibration. The reserve tube diameter of 2.251 inches supports consistent hydraulic damping performance throughout the shock’s travel length of 11.76 inches.

About the Rancho RS5000X Product Line

The RS5000X series by Rancho is designed to offer enhanced suspension control and durability for heavy-duty trucks and SUVs. This product line focuses on providing reliable shock absorbers that maintain vehicle stability under load and rough terrain conditions. The RS55381 shock absorber is part of this line, tailored specifically for Chevrolet Silverado 2500 HD and 3500 HD, as well as GMC Sierra 2500 HD and 3500 HD models, ensuring compatibility and performance aligned with the demands of these vehicles.

Applications and Problem Solving

• Improves ride quality and handling on heavy-duty Chevrolet and GMC trucks
• Reduces suspension bottoming and harsh impacts with extended bumper stop
• Protects suspension components from dust and debris with included dust shield
• Maintains consistent damping performance over extended suspension travel
• Ensures secure mounting with loop bushing and sleeve mounts to reduce noise and vibration

Installation Notes and Tips

• Verify compatibility with Chevrolet Silverado 2500 HD, 3500 HD and GMC Sierra 2500 HD, 3500 HD before installation
• Inspect mounting points for wear or damage prior to installation
• Use appropriate tools to avoid damage to loop bushing and sleeve mounts
• Ensure shock absorber is fully extended before installation to ease mounting
• Check torque specifications for mounting hardware to maintain secure fitment

Quality Assurance and Warranty

Rancho RS5000X shock absorbers are manufactured to meet OEM standards for durability and performance. The RS55381 part undergoes rigorous quality control to ensure consistent hydraulic damping and structural integrity. While specific warranty details are not provided here, Rancho typically offers limited warranties on their suspension components. Consult Rancho or authorized distributors for exact warranty terms related to this shock absorber.