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 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
2005-2012	Ford	F-450 Super Duty	Lariat
2005-2012	Ford	F-450 Super Duty	XL
2005-2012	Ford	F-450 Super Duty	XLT
2005-2015	Ford	F-550 Super Duty	Lariat
2005-2015	Ford	F-550 Super Duty	XL
2005-2015	Ford	F-550 Super Duty	XLT