What is the main advantage of a monotube shock absorber like the KYB Gas-A-Just?

The monotube design separates the gas and oil, which prevents aeration and fade. This means the shock can maintain consistent performance, especially during demanding driving conditions or when the suspension is working hard.

How does this shock help with electronic safety systems?

Electronic safety systems rely on the suspension, brakes, and tires working together as designed. By providing consistent and responsive damping, this shock helps ensure your vehicle's stability control and ABS systems can operate effectively.

Does this shock absorber come with any mounting hardware?

This product listing is for the KYB Gas-A-Just quad shock absorber itself. It is recommended to reuse your vehicle's original mounting hardware or consult your service manual for specific installation requirements.

KYB Gas-A-Just Quad Shock KG4521 - Ford Mustang 1984-2002

Name: KYB Shocks & Struts Gas-A-Just Quad Shock Ford Mustang 8.8in 79-04 (Exc 99-04 Cobra)
Brand: KYB
Price: 50.36 USD
Availability: InStock

KYB Shocks & Struts Gas-A-Just Quad Shock Ford Mustang 8.8in 79-04 (Exc 99-04 Cobra)

$50.36

Only 6 left in stock

KYB Gas-A-Just Quad Shock for Ford Mustang 1984-2002. Helps keep electronic safety systems performing as designed.

Key Features

Fits a wide range of vehicles including Ford Mustang, Thunderbird, Mercury Cougar, and various Volkswagen models.
Monotube design offers improved responsiveness and control compared to twin-tube shocks.
Features a high-pressure nitrogen gas charge to prevent aeration and fade.
Automatically adjusts damping for a comfortable ride during normal driving and improved performance on demand.
Helps electronic safety systems function as the vehicle manufacturer intended.

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Will this fit your vehicle?

Product Details

This is the KYB Gas-A-Just monotube quad shock absorber, part number KG4521. It's built to fit a range of vehicles, including popular models like the Ford Mustang from 1984 to 2002, as well as the Ford Thunderbird and Mercury Cougar from the mid-80s. This shock is designed to automatically adjust to your driving needs, offering a comfortable ride during normal cruising and providing improved control when you demand more from your vehicle.

Unlike traditional twin-tube shocks, the Gas-a-just uses a monotube design with two separate working chambers. One chamber contains an air-free hydraulic piston and valve system for responsive damping, while the other has a high-pressure nitrogen gas charge with a floating piston. This setup prevents the aeration and fade you might experience with other shocks, ensuring consistent performance. It also plays a role in helping your vehicle's electronic safety systems, like ABS and stability control, function as the manufacturer intended, because they rely on the suspension working correctly.