Rancho RS55288 Shock Absorber - Front

Reliable Suspension Shock Absorber for Chevrolet, GMC, and Hummer

The Rancho RS55288 suspension shock absorber is engineered to provide consistent performance for heavy-duty trucks and SUVs. Designed specifically for Chevrolet Silverado 2500 HD, Sierra 3500, and Hummer H2 models, this shock absorber helps maintain vehicle stability and control under demanding conditions.

• Compatible with Chevrolet Silverado 2500 HD, Sierra 3500, Suburban 3500 HD, and Hummer H2
• Part number RS55288 for precise fitment
• Includes dust shield for extended durability
• Compressed length: 13.04 inches; extended length: 15.39 inches
• Travel length of 2.35 inches for effective suspension movement
• Lower mounting with loop bushing and sleeve mount (14mm sleeve ID x 1.5/16" sleeve OAL)
• Upper stem mount with 2.5/8" stem length and 1/2"-13 thread pitch

About the Rancho RS5000X Product Line

The RS5000X series from Rancho is designed to deliver reliable shock absorption for heavy-duty and off-road applications. This product line focuses on durability and consistent damping performance, making it suitable for trucks like the Chevrolet Silverado and GMC Sierra models. The RS55288 shock absorber benefits from this engineering, providing a balance of comfort and control for demanding driving conditions.

Detailed Product Description

The Rancho RS55288 suspension shock absorber features a dust shield to protect internal components from debris and extend service life. With a compressed length of 13.04 inches and an extended length of 15.39 inches, it offers a travel length of 2.35 inches, allowing for smooth suspension articulation. The lower mounting uses a loop bushing and sleeve mount with a 14mm sleeve inner diameter and 1.5/16" outer sleeve length, ensuring a secure fit. The upper mounting is a stem mount with a 2.5/8" stem length and 1/2"-13 thread pitch, designed for straightforward installation on compatible Chevrolet, GMC, and Hummer models.

Common Applications and Problem Solving

• Restores suspension stability on Chevrolet Silverado 2500 HD and GMC Sierra 3500 HD trucks
• Reduces excessive bouncing and improves ride comfort on Hummer H2 vehicles
• Addresses wear-related shock absorber failure in heavy-duty trucks
• Enhances control and handling for loaded or towing conditions
• Prevents premature suspension component wear by maintaining proper damping

Installation Notes and Tips

• Verify part number RS55288 matches vehicle specifications before installation
• Ensure upper and lower mounting points correspond to the described stem and loop bushing mounts
• Use the included parts pack P01167 for a complete installation
• Inspect mounting hardware and suspension components for wear during replacement
• Follow manufacturer torque specifications for mounting bolts

Quality Assurance and Warranty

Rancho RS5000X shock absorbers are manufactured to meet OEM standards for durability and performance. The RS55288 part includes a dust shield to enhance longevity under harsh conditions. While specific warranty details are not provided here, Rancho products typically come with a limited warranty covering defects in materials and workmanship. Consult Rancho or your parts provider for exact warranty terms.