The KYB Gas-a-just monotube truck shock absorber has additional performance advantages over the twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The Gas-a-just is available as an OE monotube replacement and as an OE twin-tube performance upgrade. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.

This Part Fits:

Year	Make	Model	Submodel
1980-1990	Ford	F600	Base
1980-1990	Ford	F700	Base
1980-1990	Ford	F800	Base
1980-1985	Ford	LN600	Base
1980-1985	Ford	LN700	Base
1973	Ford	M-400	Base
1974	Ford	M-450	Base
1975-1977	Ford	P-500	Base
1975-1977	Ford	P-500	Custom