KYB Gas-a-Just Shock Absorber

2005–2010 Jeep Grand Cherokee 3.7L V6 / 5.7L Hemi / 6.1L SRT8

Part #: 554377

Overview

The KYB Gas-a-Just monotube shock absorber is engineered to deliver superior performance and ride quality for Jeep Grand Cherokee models from 2005 to 2010 equipped with 3.7L V6, 5.7L Hemi V8, and 6.1L SRT8 engines. Designed as a direct replacement for your factory rear shocks, this advanced monotube design offers enhanced responsiveness and control over traditional twin-tube shocks. Ideal for drivers seeking improved handling without sacrificing comfort, the Gas-a-Just shock automatically adapts to changing road conditions and driving styles, ensuring consistent performance on and off the road.

Whether you’re navigating city streets, cruising highways, or tackling rugged terrain, the KYB Gas-a-Just shock absorber provides a smooth, stable ride with reduced fade and superior damping characteristics. Its innovative design helps maintain vehicle stability and control, making it a trusted upgrade for Jeep enthusiasts who demand both comfort and performance.

Key Features

The KYB Gas-a-Just shock absorber incorporates advanced technology and quality engineering to enhance your Jeep Grand Cherokee’s suspension system. Key features include:

• Monotube design with two separate working chambers for optimal performance and comfort
• Air-free hydraulic piston and valve area that delivers immediate responsiveness and precise control
• High-pressure nitrogen gas chamber with a floating piston to prevent aeration and shock fade
• Automatic adjustment to driving conditions, providing a comfortable ride during normal use and firm damping when performance is needed
• Durable construction designed to withstand harsh road conditions and off-road use
• Direct fitment for 2005–2010 Jeep Grand Cherokee rear suspension, no modifications required
• Improved handling and stability for enhanced driver confidence
• Corrosion-resistant finish for long-lasting durability

Construction & Design

The KYB Gas-a-Just shock absorber features a robust monotube construction that separates the hydraulic fluid and high-pressure nitrogen gas chambers with a floating piston. This design eliminates the mixing of gas and fluid, preventing aeration and ensuring consistent damping performance. The shock body is crafted from high-quality steel with a corrosion-resistant coating to protect against rust and environmental damage.

Precision-engineered internal valving provides smooth and controlled shock absorption, adapting instantly to changes in road surface and driving dynamics. The use of nitrogen gas pressurization maintains consistent pressure within the shock, reducing fade and improving overall ride quality. This advanced design results in a shock absorber that balances comfort and performance for a superior driving experience.

Installation & Fitment

The KYB Gas-a-Just shock absorber is designed for direct bolt-on installation on the rear suspension of 2005–2010 Jeep Grand Cherokee models with 3.7L V6, 5.7L Hemi, and 6.1L SRT8 engines. No special tools or modifications are required, making it a straightforward upgrade for both professional mechanics and experienced DIY enthusiasts. Installation typically involves removing the old shocks and replacing them with the KYB Gas-a-Just units, ensuring proper torque specifications and alignment for optimal performance.

What's Included

• One KYB Gas-a-Just monotube rear shock absorber (part #554377)
• Installation hardware (if applicable)
• Product instructions and warranty information

Ideal For

This shock absorber is ideal for Jeep Grand Cherokee owners who want to restore or improve their vehicle’s rear suspension performance. It suits daily drivers seeking enhanced ride comfort and stability, as well as enthusiasts who demand better handling and control during spirited driving or light off-road use. The KYB Gas-a-Just shock is also a reliable choice for those replacing worn or damaged shocks to maintain factory-level performance with added benefits.

KYB is a major shock and strut manufacturer supplying both OEM and aftermarket suspension components, with options that range from OE-replacement ride quality to more performance-oriented control. For enthusiasts, KYB upgrades are a solid way to restore damping performance and tighten handling feel with proven manufacturing scale and consistency.