Rancho RS999379 Shock Absorber - Rear

Overview of Rancho RS9000XL Suspension Shock Absorber

The Rancho RS9000XL Suspension Shock Absorber (Part Number RS999379) 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 improve ride quality and vehicle control, this shock absorber is built to meet the demands of these specific models.

• Extended length of 25.4 inches for enhanced suspension travel
• Compressed length of 16.06 inches
• Travel length of 9.49 inches for optimal damping performance
• Includes dust shield to protect internal components
• Extended bumper stop for improved durability
• Upper and lower mounting with loop bushing and sleeve mount (9/16" sleeve ID x 1.5/8" sleeve OAL)
• Reserve tube diameter of 2.18 inches for heat dissipation

RS9000XL Product Line Features

The RS9000XL line from Rancho offers adjustable shock absorbers designed to provide customizable ride control for heavy-duty trucks. This product line focuses on delivering consistent damping performance with features like extended bumper stops and dust shields to enhance durability. The RS999379 shock absorber is part of this line, tailored specifically for Chevrolet and GMC heavy-duty pickups, ensuring compatibility and reliable suspension performance.

Detailed Product Description

This Rancho RS9000XL shock absorber features a compressed length of 16.06 inches and an extended length of 25.4 inches, providing a travel length of 9.49 inches. The inclusion of a dust shield helps protect the internal components from dirt and debris, extending the service life of the shock. The extended bumper stop adds an extra layer of protection during suspension compression, reducing wear. Both the upper and lower mounts use loop bushings with sleeve mounts sized at 9/16" ID by 1.5/8" OAL, ensuring a secure fit on compatible Chevrolet Silverado and GMC Sierra 2500 HD and 3500 HD models. The 2.18-inch reserve tube diameter aids in heat dissipation, maintaining consistent shock performance under demanding conditions.

Applications and Problem Solving

• Improves ride stability and handling on Chevrolet Silverado 2500 HD and 3500 HD trucks
• Reduces suspension bottoming and harsh impacts on GMC Sierra 2500 HD and 3500 HD
• Minimizes dust and debris intrusion with included dust shield
• Enhances durability with extended bumper stop to prevent premature wear
• Provides reliable mounting with loop bushing and sleeve mounts for secure installation

Installation Notes and Tips

• Verify compatibility with Chevrolet Silverado 2500 HD, 3500 HD, GMC Sierra 2500 HD, or 3500 HD before installation
• Ensure proper alignment of loop bushings and sleeve mounts during installation
• Inspect mounting hardware for wear or damage and replace if necessary
• Use appropriate tools to avoid damage to shock absorber components
• Follow vehicle manufacturer torque specifications for mounting bolts

Quality Assurance and Warranty

Rancho RS9000XL shock absorbers are manufactured to meet strict quality standards for durability and performance. The RS999379 part number undergoes rigorous testing to ensure consistent damping and long service life. 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.