KYB KG5571 Shock Absorber - Rear

KYB Gas-a-Just Rear Shock for Corvette

The KYB Gas-a-Just KG5571 is a monotube suspension shock absorber built as an OE-style replacement for the rear of select Chevrolet Corvette models. It is designed to restore original handling response, steering feel, and ride control while maintaining a comfortable ride in normal driving.

For Corvette owners searching for a rear shock absorber replacement, the KYB Gas-a-Just KG5571 combines high-pressure gas technology with a monotube layout for quick response and consistent damping.

Key Features

• Monotube OEM replacement design for direct suspension service
• Separate gas and oil chambers for fade-resistant operation and fast response
• High-pressure nitrogen gas helps sharpen steering response
• Triple chrome plated piston rod helps reduce seal wear
• Includes dust cover
• Rear position application for select Chevrolet Corvette models

Product Details

The KYB Gas-a-Just line is engineered for drivers who want OE-level control with quicker shock response than a conventional twin-tube design. KG5571 uses an air-free hydraulic working area for damping control and a separate high-pressure gas chamber with a floating piston to maintain consistent performance. This design supports stable handling during normal driving and immediate damping response when road conditions change. It is a strong choice for a Chevrolet Corvette rear shock replacement, especially when restoring factory-style suspension behavior on 1988-1996 Corvette applications.

This part cross-references Monroe Shocks & Struts 5939 for the same application.

What It Helps Address

• Excessive rear-end bounce or oscillation
• Reduced handling control in the rear suspension
• Slow steering response caused by worn shocks
• Fluid leakage from aging shock absorbers
• Loss of consistent damping on a Chevrolet Corvette rear suspension

Installation Notes and Fitment

• Fits 1990-1996 Chevrolet Corvette, rear; recommended OEM replacement; for adapting ERC to non-ERC suspension; to convert from electronic suspension, see paper catalog appendix C.
• Fits 1989-1996 Chevrolet Corvette, rear; recommended OEM replacement; except electronic suspension.
• Fits 1988 Chevrolet Corvette, rear; replace suspension strut and coil spring assembly according to manufacturer instructions.

Verify compressed length 9.76 in., extended length 14.69 in., and stroke length 4.92 in. before installation. Upper mount type is S1 and lower mount type is E2(17X42). Follow factory service procedures for the specific Corvette suspension configuration.

Quality Assurance

KYB designs the Gas-a-Just line as an OE monotube replacement to help restore the vehicle’s original suspension performance. The KG5571 is built to support consistent damping, reduced seal wear, and stable operation in systems that depend on suspension performance remaining within manufacturer specifications.