KYB 555055 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber 555055

The KYB Gas-a-just Suspension Shock Absorber 555055 is engineered for Chevrolet and GMC trucks, specifically designed to restore original ride quality and handling. This shock absorber is compatible with Chevrolet Silverado 1500, Silverado 1500 LD, Sierra 1500, and Sierra 1500 Limited models, providing reliable suspension performance.

• Compressed length: 15.86 inches
• Extended length: 24.68 inches
• Stroke length: 9.02 inches
• Lower mount type: E2 (14.6x42)
• Upper mount type: E2 (14.6x42)
• Includes dust cover for protection
• R-stop feature included for controlled rebound
• No internal rebound spring or B-stop

Details on KYB Gas-a-just Product Line

The Gas-a-just line by KYB focuses on gas-charged shock absorbers designed to improve vehicle stability and control. This product line uses pressurized nitrogen gas to reduce aeration and foaming inside the shock, which helps maintain consistent damping performance. The 555055 shock absorber is part of this line, offering a balance of comfort and handling tailored for Chevrolet and GMC full-size pickup trucks.

Technical Description and Features

The KYB 555055 shock absorber features a compressed length of 15.86 inches and an extended length of 24.68 inches, with a stroke length of 9.02 inches, ensuring proper fitment and suspension travel for the specified truck models. Both the upper and lower mounts use the E2 (14.6x42) type, providing secure attachment points. The inclusion of a dust cover helps protect the shock shaft from dirt and debris, extending the service life. The R-stop feature controls rebound travel, enhancing ride stability, while the absence of an internal rebound spring and B-stop indicates a design focused on smooth damping characteristics.

Applications and Problem Solving

• Restores factory ride quality on Chevrolet Silverado 1500 and GMC Sierra 1500 trucks
• Reduces excessive bouncing and body roll during driving
• Improves handling and vehicle control on rough or uneven roads
• Replaces worn or leaking shock absorbers to maintain suspension integrity
• Prevents premature tire wear caused by poor shock performance

Installation Notes and Tips

• Ensure compatibility with Chevrolet Silverado 1500, Silverado 1500 LD, Sierra 1500, and Sierra 1500 Limited models before installation
• Use proper tools to remove and install E2 (14.6x42) upper and lower mounts securely
• Inspect mounting hardware and suspension components for wear during replacement
• Follow vehicle manufacturer torque specifications for mounting bolts
• Test drive after installation to verify proper shock absorber function and ride quality

Quality Assurance and Warranty

KYB manufactures the Gas-a-just 555055 shock absorber to meet or exceed OEM specifications for Chevrolet and GMC trucks. The product includes a dust cover for enhanced durability and is designed to provide consistent damping performance. While specific warranty details are not provided here, KYB typically offers limited warranties on their shock absorbers covering defects in materials and workmanship. Refer to KYB documentation for exact warranty terms.