KYB 555056 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber 555056

The KYB Gas-a-just shock absorber 555056 is engineered for Ford F-250 Super Duty and F-350 Super Duty trucks. Designed to restore original handling and control, this suspension shock absorber offers precise damping performance tailored to heavy-duty applications.

• Compressed length: 17.87 inches
• Extended length: 29.29 inches
• Stroke length: 11.42 inches
• Lower mount type: E2 (12x38)
• Upper mount type: E1
• Includes dust cover for protection
• No internal rebound spring
• No B-stop or R-stop features

Detailed Product Features and Specifications

This KYB Gas-a-just shock absorber features a compressed length of 17.87 inches and an extended length of 29.29 inches, providing a stroke length of 11.42 inches. The lower mount uses an E2 (12x38) configuration, while the upper mount is an E1 type, ensuring compatibility with the suspension setup of Ford F-250 Super Duty and F-350 Super Duty models. The included dust cover helps protect the shock shaft from dirt and debris, extending the service life of the component. This model does not include an internal rebound spring or bump stops (B-stop and R-stop), which is consistent with the original equipment design for these trucks.

About the KYB Gas-a-just Product Line

The Gas-a-just line by KYB is designed to provide reliable gas-charged shock absorbers that maintain vehicle stability and control under demanding conditions. This product line focuses on delivering consistent damping performance to restore factory ride quality and handling characteristics. The 555056 shock absorber is part of this line, offering a direct replacement solution for Ford Super Duty trucks requiring durable suspension components.

Common Applications and Problem Solving

• Restores proper suspension damping on Ford F-250 Super Duty and F-350 Super Duty trucks
• Reduces excessive bouncing and body roll during heavy load or towing conditions
• Improves vehicle stability and control on rough or uneven terrain
• Addresses worn or leaking original shock absorbers causing poor ride quality
• Prevents premature tire wear related to suspension issues

Installation Notes and Tips

When installing the KYB Gas-a-just shock absorber 555056, ensure the correct orientation of the E1 upper mount and E2 lower mount for proper fitment. Verify the compressed and extended lengths to confirm compatibility with your Ford F-250 Super Duty or F-350 Super Duty suspension. It is recommended to replace shocks in pairs to maintain balanced handling. Use appropriate tools to avoid damage to the dust cover and mounting hardware during installation.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just shock absorbers to meet or exceed OEM specifications. The 555056 part number undergoes rigorous quality control to ensure durability and consistent performance. While specific warranty details may vary, KYB typically offers a limited warranty covering defects in materials and workmanship for this product line.