KYB Gas-A-Just Rear Monotube Shock Absorber KG5522 for Select 1955-2003 AMC, Ford, and Lincoln

Fits select 1955-2003 AMC, Chevrolet, Ford, Lincoln, Mercury, and Toyota models including Ambassador, Eagle, Galaxie 500, Town Car, and Sienna.

The KYB Gas-a-just is a high-pressure monotube shock absorber designed to provide superior handling and responsiveness compared to traditional twin-tube designs. By utilizing two separate working chambers—an air-free hydraulic piston area and a high-pressure nitrogen gas area separated by a floating piston—it eliminates performance fade caused by oil aeration. This allows the shock to adjust instantly to road conditions, maintaining tire contact and vehicle stability.

As a performance-oriented upgrade, the Gas-a-just provides a firm, controlled ride that supports the proper operation of steering and electronic safety systems. It is an ideal solution for drivers seeking to restore original handling or improve cornering and braking performance on vintage American classics or modern utility vehicles.

• Monotube Design: Higher damping rates provide more control and responsiveness than twin-tube shocks.
• Consistent Performance: Floating piston design prevents aeration and foam buildup to ensure fade-free operation.
• High-Pressure Nitrogen: Nitrogen gas charge helps maintain tire-to-road contact under demanding conditions.
• Direct Replacement: Engineered to bolt directly to factory rear mounting points.
• Manufacturer Part Number: KG5522
• Position: Rear