Smooth out a hard-working truck with the KYB Gas-a-just Shock Absorber KG5486, a high-pressure monotube gas shock built as a front-position replacement for the 1988-1997 Ford F-Super Duty. This KYB shock absorber uses a monotube design that separates the gas and oil for fade-free operation and instant response, giving it real advantages over a traditional twin-tube.
Two working chambers: An air-free hydraulic piston and valve area handles responsiveness and control, while a separate high-pressure nitrogen gas area with a floating piston supports a comfortable ride during normal driving and adds damping on demand.
Triple chrome-plated piston rod: An ultra-smooth rod is designed to reduce seal wear, since fluid leaking can be a cause of shock failure.
Heavy-duty valving: Components and valving are designed specifically for heavy-duty trucks, adding up to 25% more damping over original-equipment shocks for vehicles that work, tow, and run larger, heavier tires and wheels.
Higher gas pressure is designed to improve steering response, and KYB notes the Gas-a-just helps keep electronic safety systems performing as designed. Shocks wear as a set, so replacing both front units together is recommended for balanced control; sold individually.
Interchange: 34791
Frequently Asked Questions
What vehicle does the KYB shock absorber KG5486 fit?
It is designed as a front-position replacement for the 1988-1997 Ford F-Super Duty. See the "Vehicles it fits" section to confirm the exact fit for your truck.
Is this a gas shock absorber?
Yes. The KYB Gas-a-just is a high-pressure monotube gas shock absorber that uses nitrogen gas and a floating piston to separate gas from oil for fade-free operation.
How does the KYB gas shock absorber differ from a twin-tube?
Its monotube design keeps two separate working chambers and separates gas and oil, so it resists fade from aeration and responds quickly, unlike a traditional twin-tube shock.
Does this shock help with towing and heavy loads?
Its components and valving are designed for heavy-duty trucks, adding up to 25% more damping over OE shocks for vehicles that work, tow, and run larger, heavier tires and wheels.
Do I need to replace shocks in pairs?
It is sold individually. Because shocks wear together, replacing both front units at the same time is recommended for balanced, consistent control.
