KYB KG5552 Shock Absorber - Rear

KYB Gas-a-Just Rear Shock for Classic Toyota and Isuzu

The KYB Gas-a-Just KG5552 is a monotube suspension shock absorber built for rear applications on select classic Toyota and Isuzu vehicles. It uses separate gas and hydraulic working chambers to deliver quick response, consistent damping, and fade resistance during demanding driving.

Gas-a-Just is KYB’s performance-oriented shock line for vehicles that work harder than a standard commuter setup. For classic Toyota Cressida and Celica rear suspension service, KG5552 adds firmer control without abandoning everyday ride quality.

Key Features

• Part number KG5552 for rear suspension applications
• Monotube design separates gas and oil for fade-free operation and fast response
• Up to 25% more damping performance than original equipment shocks
• High-pressure nitrogen gas chamber improves steering response and control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Designed for classic car valving and components
• Dust cover included

Detailed Description

KYB Gas-a-Just KG5552 uses an air-free hydraulic piston area for control and a high-pressure nitrogen chamber with a floating piston for added performance on demand. That design helps maintain consistent damping under load, during repeated suspension movement, and in vehicles with larger wheels and tires. This rear shock absorber is a direct-fit service part for select 1978-1987 Toyota Cressida, 1978-1985 Toyota Celica, 1983-1985 Toyota Celica with solid rear axle, and 1983-1989 Isuzu Impulse rear applications. This part cross-references Monroe Shocks & Struts 5870 for the same application.

What It Helps Address

• Excessive rear-end bounce after bumps
• Reduced damping control from worn OE shocks
• Fade caused by aeration during repeated suspension movement
• Loose steering feel linked to weak rear suspension control
• Ride instability on classic cars with heavier wheels and tires

Installation Notes and Tips

• Fits 1983-1989 Isuzu Impulse, rear.
• Fits 1978-1987 Toyota Cressida, rear.
• Fits 1983-1985 Toyota Celica, rear, with solid rear axle.
• Fits 1978-1985 Toyota Celica, rear.
• Verify lower mount type E1 and upper mount type S1 before installation.
• Check compressed length 12.01 in., extended length 18.58 in., and stroke length 6.57 in. against the vehicle’s suspension travel.
• Inspect mounting points, bushings, and surrounding hardware for wear before replacing the shock.

Quality Assurance

KYB designs Gas-a-Just shocks with monotube construction and high-pressure gas separation to maintain consistent damping performance. The KG5552 is engineered for rear suspension service on the listed Toyota and Isuzu applications and is built to support stable operation of the suspension system.