KYB KG6414 Shock Absorber - Rear

KYB Gas-a-just Rear Shock Absorber

The KYB Gas-a-just KG6414 is a monotube rear shock absorber built for heavy-duty use on Ford E-350 applications. It is engineered to deliver firmer control, quicker response, and consistent damping for vehicles that work, tow, or run larger tires and wheels.

For 1992-2000 Ford E-350 Econoline and E-350 Super Duty rear applications, this shock is designed to improve stability without sacrificing everyday ride quality. The Gas-a-just line uses a high-pressure monotube layout to separate gas and oil for fade-resistant operation.

Key Features

• Adds up to 25% more damping performance over original equipment shocks
• Monotube design separates gas and oil for fast response and reduced fade
• High gas pressure improves steering response and suspension control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Built with valving and components suited for heavy-duty truck use
• Includes a dust cover for added protection
• Compatible with electronic safety systems that rely on proper suspension performance

Product Line Details

KYB Gas-a-just shocks are tuned for drivers who need more control than a standard twin-tube design can provide. The separate working chambers and floating piston design allow the shock to react quickly under load while maintaining a comfortable ride during normal driving. This makes the KG6414 a practical choice for Ford E-350 Econoline and Ford E-350 Super Duty rear suspension service.

What This Shock Absorber Helps Address

• Excessive rear-end bounce on worn suspension
• Reduced control when towing or carrying heavy loads
• Soft or delayed shock response on heavy-duty trucks
• Ride fade caused by heat and aeration in conventional shocks
• Steering and stability issues related to weak damping

Installation Notes and Fitment

Fits 1992-2000 Ford E-350 Econoline Club Wagon, rear, Motorhome Conversion; Gas-a-just. Fits 1999-2000 Ford E-350 Super Duty, rear, Gas-a-just. Fits 1999-2000 Ford E-350 Super Duty, rear, Motorhome Conversion; Gas-a-just. Fits 1992-1998 Ford E-350 Econoline, rear, Gas-a-just. Fits 1992-1998 Ford E-350 Econoline, rear, Motorhome Conversion; Gas-a-just.

Verify compressed length, extended length, and mount types before installation: compressed length 13.58 in, extended length 21.61 in, stroke length 8.03 in, lower mount E2(12X38), upper mount S1. Rear suspension service should be performed with the vehicle safely supported and the mounting points inspected for wear or damage.

Quality Assurance

KYB designs the Gas-a-just line with a monotube construction that separates gas and oil for consistent damping and reduced fade. Part number KG6414 cross-references Monroe Shocks & Struts 555032 for the same application.