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.

Fitment:
Ford Fairmont Base 1978
Ford Fairmont Base 1979
Ford Fairmont Base 1980
Ford Fairmont Base 1981
Ford Fairmont Futura 1978
Ford Fairmont Futura 1979
Ford Fairmont Futura 1980
Ford Fairmont Futura 1981
Ford Fairmont S 1981
Ford Mustang Base 1979
Ford Mustang Base 1980
Ford Mustang Base 1981
Ford Mustang Cobra 1981
Ford Mustang Ghia 1979
Ford Mustang Ghia 1980
Ford Mustang Ghia 1981
Ford Mustang GL 1982
Ford Mustang GL 1983
Ford Mustang GLX 1982
Ford Mustang GLX 1983
Ford Mustang GT 1982
Ford Mustang GT 1983
Ford Mustang GT 1984
Ford Mustang GT 1985
Ford Mustang GT 1986
Ford Mustang GT 1987
Ford Mustang GT 1988
Ford Mustang GT 1989
Ford Mustang GT 1990
Ford Mustang GT 1991
Ford Mustang GT 1992
Ford Mustang GT 1993
Ford Mustang GT-350 20th Anniversary 1984
Ford Mustang L 1982
Ford Mustang L 1983
Ford Mustang L 1984
Ford Mustang LX 1984
Ford Mustang LX 1985
Ford Mustang LX 1986
Ford Mustang LX 1987
Ford Mustang LX 1988
Ford Mustang LX 1989
Ford Mustang LX 1990
Ford Mustang LX 1991
Ford Mustang LX 1992
Ford Mustang LX 1993
Ford Mustang SVO 1984
Ford Mustang SVO 1985
Ford Mustang SVO 1986
Ford Mustang SVT Cobra 1993
Ford Mustang Turbo GT 1983
Mercury Capri 5.0 1986
Mercury Capri Base 1979
Mercury Capri Base 1980
Mercury Capri Base 1981
Mercury Capri Base 1982
Mercury Capri Base 1983
Mercury Capri Black Magic 1982
Mercury Capri Black Magic 1983
Mercury Capri Crimson Cat 1983
Mercury Capri Ghia 1979
Mercury Capri Ghia 1980
Mercury Capri GS 1981
Mercury Capri GS 1982
Mercury Capri GS 1983
Mercury Capri GS 1984
Mercury Capri GS 1985
Mercury Capri GS 1986
Mercury Capri L 1982
Mercury Capri L 1983
Mercury Capri RS 1982
Mercury Capri RS 1983
Mercury Capri RS 1984
Mercury Capri RS 1985
Mercury Capri RS Turbo 1984
Mercury Zephyr Base 1978
Mercury Zephyr Base 1979
Mercury Zephyr Base 1980
Mercury Zephyr Base 1981
Mercury Zephyr Z7 1978
Mercury Zephyr Z7 1979
Mercury Zephyr Z7 1980
Mercury Zephyr Z7 1981