The KYB Gas-a-just monotube shock absorber has additional performance advantages over the traditional 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
1983-1986	Ford	F-250	Base
1980-1982,1987-1991	Ford	F-250	Custom
1980-1981	Ford	F-250	Ranger
1980-1981	Ford	F-250	Ranger Lariat
1980-1981	Ford	F-250	Ranger XLT
1982-1991	Ford	F-250	XL
1982-1983	Ford	F-250	XLS
1983-1984	Ford	F-250	XLT
1982,1985-1991	Ford	F-250	XLT Lariat
1983-1986,1997	Ford	F-350	Base
1980-1982,1987-1992	Ford	F-350	Custom
1995	Ford	F-350	Eddie Bauer
1980-1981	Ford	F-350	Ranger
1980-1981	Ford	F-350	Ranger Lariat
1980-1981	Ford	F-350	Ranger XLT
1995-1996	Ford	F-350	Special
1982-1997	Ford	F-350	XL
1982-1983	Ford	F-350	XLS
1983-1984,1993-1997	Ford	F-350	XLT
1982,1985-1992	Ford	F-350	XLT Lariat
1999-2004	Ford	F-450 Super Duty	Lariat
1999-2004	Ford	F-450 Super Duty	XL
1999-2004	Ford	F-450 Super Duty	XLT
1999-2004	Ford	F-550 Super Duty	Lariat
1999-2004	Ford	F-550 Super Duty	XL
1999-2004	Ford	F-550 Super Duty	XLT