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.

Fitment:
Chevrolet P30 Base 1975
Chevrolet P30 Base 1976
Chevrolet P30 Base 1977
Chevrolet P30 Base 1978
Chevrolet P30 Base 1979
Chevrolet P30 Base 1980
Chevrolet P30 Base 1981
Chevrolet P30 Base 1982
Chevrolet P30 Base 1983
Chevrolet P30 Base 1984
Chevrolet P30 Base 1985
Chevrolet P30 Base 1986
Chevrolet P30 Base 1987
Chevrolet P30 Base 1988
Chevrolet P30 Base 1989
Chevrolet P30 Base 1990
Chevrolet P30 Base 1991
Chevrolet P30 Base 1992
Chevrolet P30 Base 1993
Chevrolet P30 Base 1994
Chevrolet P30 Base 1995
Chevrolet P30 Base 1996
Chevrolet P30 Base 1997
Chevrolet P30 Base 1998
Chevrolet P30 Base 1999
Chevrolet P30 Step-Van 1975
Chevrolet P30 Step-Van 1976
Chevrolet P30 Step-Van 1977
Chevrolet P30 Step-Van 1978
Chevrolet P30 Step-Van 1979
Chevrolet P30 Step-Van 1980
Chevrolet P30 Step-Van 1981
Chevrolet P30 Step-Van 1982
Chevrolet P30 Step-Van 1983
Chevrolet P30 Step-Van 1984
Chevrolet P30 Step-Van 1985
Chevrolet P30 Step-Van 1987
Chevrolet P30 Step-Van 1988
Chevrolet P30 Step-Van 1989
Chevrolet P30 Step-Van 1990
Chevrolet P30 Van Base 1973
Chevrolet P30 Van Base 1974
GMC P35 Base 1975
GMC P35 Base 1976
GMC P35 Base 1977
GMC P35 Base 1978
GMC P35 Value Van 1975
GMC P35 Value Van 1976
GMC P35 Value Van 1977
GMC P35 Value Van 1978
GMC P35/P3500 Van Base 1973
GMC P35/P3500 Van Base 1974
GMC P35/P3500 Van Motorhome 1974
GMC P3500 Base 1979
GMC P3500 Base 1980
GMC P3500 Base 1981
GMC P3500 Base 1982
GMC P3500 Base 1983
GMC P3500 Base 1984
GMC P3500 Base 1985
GMC P3500 Base 1986
GMC P3500 Base 1987
GMC P3500 Base 1988
GMC P3500 Base 1989
GMC P3500 Base 1990
GMC P3500 Base 1991
GMC P3500 Base 1992
GMC P3500 Base 1993
GMC P3500 Base 1994
GMC P3500 Base 1995
GMC P3500 Base 1996
GMC P3500 Base 1997
GMC P3500 Base 1998
GMC P3500 Base 1999
GMC P3500 Value Van 1979
GMC P3500 Value Van 1980
GMC P3500 Value Van 1981
GMC P3500 Value Van 1982
GMC P3500 Value Van 1983
GMC P3500 Value Van 1984
GMC P3500 Value Van 1985
GMC P3500 Value Van 1986
GMC P3500 Value Van 1987
GMC P3500 Value Van 1988
GMC P3500 Value Van 1989
GMC P3500 Value Van 1990