KYB 555609 Shock Absorber - Rear

KYB Gas-a-just Rear Shock for Corvette

The KYB Gas-a-just 555609 is a monotube rear shock absorber built as an OE-style replacement for the Chevrolet Corvette. It is engineered to restore original handling response while maintaining a controlled ride in normal driving.

For 1997-2013 Chevrolet Corvette rear applications without Electronic Suspension and Magnetic Selective Ride, this KYB Gas-a-just shock uses a high-pressure monotube design to separate gas and oil for consistent response. The 555609 is also suited to vehicles with heavier wheels and tires, towing use, or added load demands.

Key Features

• Monotube OE replacement for rear suspension service
• Restores designed control and handling on the Chevrolet Corvette
• High-pressure nitrogen gas chamber delivers quick response
• Separate gas and oil chambers support fade-resistant operation
• Triple chrome plated piston rod helps reduce seal wear
• Includes dust cover; B-stop and R-stop are listed in the design
• Compatible with vehicles that work, tow, or run larger, heavier tires and wheels

Product Details

KYB Gas-a-just shocks are built around a two-chamber monotube layout: an air-free hydraulic working area for control and a high-pressure nitrogen gas section with a floating piston for added responsiveness. That design helps the suspension react quickly when road conditions change, which is important for a Chevrolet Corvette rear shock replacement where steering response and chassis control matter. Part number 555609 is a direct-fit style solution for restoring the vehicle’s original suspension behavior.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Rear-end bounce or reduced damping control
• Delayed steering response from worn shock absorbers
• Ride fade during repeated suspension movement
• Seal wear associated with fluid leakage
• Loss of suspension performance on heavier wheel and tire setups

Installation Notes

• Fits 1997-2013 Chevrolet Corvette, rear, recommended OEM replacement; without Electronic Suspension and Magnetic Selective Ride.
• Verify upper and lower mount style before installation: upper mount type S1, lower mount type SPECIAL.
• Check compressed length, extended length, and stroke length against the original shock before service.
• Professional installation and a post-repair suspension inspection are recommended.

Quality Assurance

KYB designs the Gas-a-just line as an OE monotube replacement to help restore factory suspension performance. Part number 555609 is built to KYB’s suspension standards for consistent rear shock service on the Chevrolet Corvette.