KYB KG5423 Shock Absorber - Rear

KYB Gas-a-just Rear Shock Absorber

The KYB Gas-a-just KG5423 is a rear monotube shock absorber built for Dodge trucks and SUVs that need firmer control, quicker response, and consistent damping. It is engineered for rear suspension service on Dodge D150, D250, D350, Ramcharger, W150, W250, W350, D100, W100, D200, D300, W200, and W300 applications.

Gas-a-just shocks use a monotube design with separate gas and oil chambers, helping maintain fade-free operation and immediate response during normal driving, towing, and load-carrying use. The KG5423 is a direct-fit rear shock for 1975-1993 Dodge truck and Ramcharger applications listed below.

Key Features

• Monotube shock absorber design for responsive rear suspension control
• Up to 25% more damping performance than original equipment shocks
• High-pressure nitrogen gas separates from the oil to reduce fade from aeration
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Valving and components designed specifically for Dodge truck applications
• Improves steering response and suspension control on vehicles with heavier tires and wheels
• Supports electronic safety systems by helping the suspension operate as intended

Product Details

The KYB Gas-a-just line is built for drivers who want more control from the rear suspension without sacrificing everyday ride quality. The KG5423 uses an air-free hydraulic working area for responsiveness and a separate high-pressure gas chamber for added performance on demand. That design helps the shock react quickly when the vehicle is loaded, towing, or driven on rougher roads. This part cross-references Monroe Shocks & Struts (e.g., 34832) for the same application.

Compatible With 1975-1993 Dodge D150, rear; 1981-1993 Dodge D250, rear; 1981-1993 Dodge D350, rear; 1976-1993 Dodge Ramcharger, rear; 1977-1993 Dodge W150, rear; 1981-1993 Dodge W250, rear; 1981-1993 Dodge W350, rear; 1986-1989 Dodge D100, rear; 1979 Dodge D100, rear; 1986-1989 Dodge W100, rear; 1975-1977 Dodge W100, rear; 1979-1980 Dodge D200, rear; 1979-1980 Dodge D300, rear; 1975-1980 Dodge W200, rear; and 1975-1980 Dodge W300, rear.

Common Issues This Shock Can Address

• Excessive rear-end bounce after bumps or dips
• Reduced control when hauling cargo or towing
• Soft or inconsistent damping from worn OE shocks
• Rear suspension fade during repeated compression cycles
• Delayed response in Dodge truck rear suspension movement

Installation Notes and Tips

Verify compressed length, extended length, and mount style before installation. For this part, the compressed length is 17.13 inches, the extended length is 28.35 inches, and the stroke length is 11.22 inches. Mounting details are lower mount type E1L/E(17.5) and upper mount type E2(12.8X41.3). A dust cover is included; internal rebound spring and B-stop are not included.

Use the vehicle fitment list to confirm rear application coverage for your Dodge D150, D250, D350, Ramcharger, W150, W250, W350, D100, W100, D200, D300, W200, or W300 before ordering. The KG5423 is intended for rear suspension service on the listed models and years.

Quality Assurance

KYB designs the Gas-a-just line with monotube construction, high-pressure gas separation, and corrosion-resistant piston rod treatment to support consistent damping performance over time. The KG5423 is part of KYB’s Gas-a-just product line for drivers seeking firmer rear shock control on Dodge truck and Ramcharger applications.