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
2004	Ford	F-250 Super Duty	Harley-Davidson Edition
2004	Ford	F-250 Super Duty	King Ranch
1999-2004	Ford	F-250 Super Duty	Lariat
1999-2004	Ford	F-250 Super Duty	XL
1999-2004	Ford	F-250 Super Duty	XLT
2009-2010	Ford	F-350 Super Duty	Cabela's
2008-2009	Ford	F-350 Super Duty	FX4
2004-2010	Ford	F-350 Super Duty	Harley-Davidson Edition
2003-2016	Ford	F-350 Super Duty	King Ranch
1999-2016	Ford	F-350 Super Duty	Lariat
2013-2016	Ford	F-350 Super Duty	Platinum
1999-2016	Ford	F-350 Super Duty	XL
1999-2016	Ford	F-350 Super Duty	XLT