KYB KG5429 Shock Absorber - Front or Rear

KYB Gas-a-Just Front Shock Absorber

The KYB Gas-a-Just KG5429 is a monotube suspension shock absorber built to restore OE-style control with quicker response and added damping performance. It is a direct-fit front shock for select Ford F-150, F-250, and F-350 applications, including trucks that work, tow, or run larger tires and wheels.

Key Features

• Monotube design separates gas and oil for consistent damping and fast response
• Up to 25% more damping performance than original equipment shocks
• Higher gas pressure improves steering response and road control
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Valving and components are tuned specifically for Dodge trucks in the Gas-a-Just line
• Dust cover included for added protection
• Front application with S1 upper and lower mount types

Product Details

Gas-a-Just is KYB’s monotube shock line for drivers who want firmer control without giving up normal-road comfort. The KG5429 uses an air-free hydraulic working chamber and a separate high-pressure nitrogen gas chamber with a floating piston, which helps maintain fade-free operation and immediate damping response. This design is well suited to Ford F-150, Ford F-250, and Ford F-350 front suspension service where load, towing, or heavier wheel and tire setups can place extra demand on the shock absorber. This part cross-references Monroe Shocks & Struts 34909 for the same application.

What It Helps Solve

• Excessive front-end bounce after bumps or dips
• Reduced steering response on worn suspension
• Shock fade during repeated load or tow use
• Fluid leakage caused by seal wear
• Loss of control from tired OE-style shocks

Installation Notes

Compatible with 1978-1979 Ford F-150, front; 1977-1979 Ford F-250, front; and 1979 Ford F-350, front. For the 1978-1979 Ford F-150, replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. For the 1977-1979 Ford F-250, use the recommended OEM replacement application from serial no. Y20001. Verify compressed length, extended length, stroke, and mount style before installation. The KG5429 part number should be matched to the vehicle’s front suspension configuration before service.

Quality Assurance

KYB is known for OE-style suspension engineering, and the Gas-a-Just line is built as a monotube replacement to restore original vehicle capability with improved damping response. The KG5429 part number is designed for consistent front suspension performance on the listed Ford truck applications.