Rancho RS55377 Suspension Shock Absorber - Front

Overview of Rancho RS5000X Suspension Shock Absorber

The Rancho RS5000X Suspension Shock Absorber (Part Number RS55377) is engineered for heavy-duty use on Chevrolet and GMC trucks. Designed specifically for models like the Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, and Sierra 3500 HD, this shock absorber delivers reliable performance tailored to demanding suspension needs.

• Compressed length: 13.67 inches
• Extended length: 17.97 inches
• Travel length: 4.3 inches
• Lower mounting: Clevis bracket mount (Code: Clev)
• Upper mounting: Xp15 mount (Code: Xp15)
• No compressed or extended bumper stops
• No dust shield included
• Parts pack included: P01299

Details on the RS5000X Product Line

The RS5000X line from Rancho is designed to provide consistent damping performance for trucks and SUVs under heavy load and off-road conditions. This product line focuses on durability and controlled ride quality, making it suitable for Chevrolet and GMC heavy-duty pickups. The RS55377 shock absorber is part of this series, offering precise fitment and reliable suspension response for the specified models.

Technical Description of the RS55377 Shock Absorber

This suspension shock absorber features a compressed length of 13.67 inches and an extended length of 17.97 inches, providing a travel length of 4.3 inches. The lower mounting uses a clevis bracket mount (Clev), while the upper mounting employs an Xp15 mount, ensuring secure and proper installation on compatible vehicles. The design excludes compressed and extended bumper stops as well as dust shields, focusing on straightforward shock functionality. The included parts pack (P01299) supports installation needs.

Applications and Problem Solving

• Improves ride stability on Chevrolet Silverado 2500 HD and 3500 HD models
• Enhances suspension control for GMC Sierra 2500 HD and 3500 HD trucks
• Reduces excessive bouncing and body roll under heavy load conditions
• Addresses worn or damaged factory shocks causing poor handling
• Restores proper suspension travel and damping response

Installation Notes and Tips

Ensure compatibility with Chevrolet Silverado and GMC Sierra heavy-duty models before installation. The clevis bracket lower mount and Xp15 upper mount require proper alignment and secure fastening. Verify shock absorber length matches vehicle specifications to maintain suspension geometry. No dust shield is included, so inspect existing components for wear during replacement.

Quality Assurance and Warranty

Rancho RS5000X shocks are manufactured to meet OEM standards for durability and performance. While specific warranty details for part number RS55377 are not provided here, Rancho typically offers coverage against defects in materials and workmanship. Consult Rancho or authorized distributors for exact warranty terms.