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.

Vehicle Fitment

Years	Make	Model	Trim
1987–1991	Avanti	II	Base
1980–1981	Buick	Century
1973–1977, 1980–1981	Buick	Century	Base
1975–1979	Buick	Century	Custom
1976	Buick	Century	Indianapolis 500 Pace CAR
1978–1981	Buick	Century	Limited
1973–1975	Buick	Century	Luxus
1975–1979	Buick	Century	Special
1978–1981	Buick	Century	Sport
1970–1972	Buick	GS	Base
1968–1969	Buick	GS 350	Base
1968–1969	Buick	GS 400	Base
1970–1972	Buick	GS 455	Base
1970	Buick	GS 455	GSX
1973–1987	Buick	Regal	Base
1982–1983	Buick	Regal	Estate Wagon
1987	Buick	Regal	GNX
1984–1987	Buick	Regal	Grand National
1978–1987	Buick	Regal	Limited
1982	Buick	Regal	Limited Turbo
1978–1982	Buick	Regal	Sport
1976–1977	Buick	Regal	SR
1983–1986	Buick	Regal	T-Type
1970, 1972	Buick	Skylark	350
1968–1972	Buick	Skylark	Base
1968–1972	Buick	Skylark	Custom
1968–1969	Buick	Special	Base
1968–1972	Buick	Sportwagon	Base
1968–1969	Buick	Sportwagon	Custom
1976–1979	Cadillac	Seville	Base
1978–1979	Cadillac	Seville	Elegante
1977–1978	Cadillac	Seville	Opera
1968	Chevrolet	Chevelle	300
1968–1969	Chevrolet	Chevelle	300 Deluxe
1968, 1970–1972	Chevrolet	Chevelle	Base
1968–1972	Chevrolet	Chevelle	Concours
1969–1972	Chevrolet	Chevelle	Concours Estate
1973	Chevrolet	Chevelle	Deluxe
1969–1972	Chevrolet	Chevelle	Greenbrier
1968–1972	Chevrolet	Chevelle	Malibu
1968–1972	Chevrolet	Chevelle	Nomad
1968–1972	Chevrolet	Chevelle	SS
1968–1987	Chevrolet	EL Camino	Base
1975–1977	Chevrolet	EL Camino	Classic
1977–1978, 1981–1986	Chevrolet	EL Camino	Conquista
1968–1974	Chevrolet	EL Camino	Custom
1979–1981	Chevrolet	EL Camino	Royal Knight
1968–1987	Chevrolet	EL Camino	SS
1973, 1975–1976	Chevrolet	Laguna
1973–1975	Chevrolet	Laguna	Base
1974	Chevrolet	Laguna	Type S-3
1973–1974, 1979–1980	Chevrolet	Malibu
1973–1981	Chevrolet	Malibu	Base
1974–1983	Chevrolet	Malibu	Classic
1975–1976, 1978–1980	Chevrolet	Malibu	Classic Estate
1976–1981	Chevrolet	Malibu	Classic Landau
1977, 1979–1980	Chevrolet	Malibu	Classic Sport
1976, 1979	Chevrolet	Malibu	Landau
1979	Chevrolet	Malibu	Police
1977, 1979–1980	Chevrolet	Malibu	Sport
1970–1974, 1979, 1981–1988	Chevrolet	Monte Carlo	Base
1983	Chevrolet	Monte Carlo	CL
1973–1974, 1976, 1978–1981	Chevrolet	Monte Carlo	Landau
1986–1988	Chevrolet	Monte Carlo	LS
1973, 1975–1977	Chevrolet	Monte Carlo	S
1978, 1980	Chevrolet	Monte Carlo	Sport
1983–1988	Chevrolet	Monte Carlo	SS
1981–1986	GMC	Caballero	Amarillo
1978–1987	GMC	Caballero	Base
1981	GMC	Caballero	Conquista
1978–1987	GMC	Caballero	Diablo
1978–1980	GMC	Caballero	Laredo
1981	GMC	Caballero	Royal Knight
1971–1977	GMC	Sprint	Base
1975–1977	GMC	Sprint	Classic
1972–1974	GMC	Sprint	Custom
1975	GMC	Sprint	High Sierra
1976	GMC	Sprint	Sierra Madre DEL SUR
1975–1976	GMC	Sprint	SP
1968–1971	Oldsmobile	442	Base
1975, 1977	Oldsmobile	Cutlass	442
1968–1975, 1980	Oldsmobile	Cutlass	Base
1980–1981	Oldsmobile	Cutlass	Brougham
1977	Oldsmobile	Cutlass	Colonnade
1976–1977	Oldsmobile	Cutlass	Colonnade S
1972	Oldsmobile	Cutlass	Cruiser
1980–1981	Oldsmobile	Cutlass	LS
1968, 1971–1977	Oldsmobile	Cutlass	S
1976–1979	Oldsmobile	Cutlass	Vista Cruiser
1979	Oldsmobile	Cutlass	Vista Cruiser Brougham
1978–1984	Oldsmobile	Cutlass Calais	Base
1983–1984	Oldsmobile	Cutlass Calais	Hurst
1980–1983	Oldsmobile	Cutlass Cruiser	Base
1980–1981	Oldsmobile	Cutlass Cruiser	Brougham
1978–1979, 1985–1986	Oldsmobile	Cutlass Salon	442
1975–1980, 1985–1987	Oldsmobile	Cutlass Salon	Base
1978–1980	Oldsmobile	Cutlass Salon	Brougham
1979	Oldsmobile	Cutlass Salon	Hurst
1987	Oldsmobile	Cutlass Supreme	442
1968–1988	Oldsmobile	Cutlass Supreme	Base
1977–1987	Oldsmobile	Cutlass Supreme	Brougham
1988	Oldsmobile	Cutlass Supreme	Classic
1988	Oldsmobile	Cutlass Supreme	Classic Brougham
1976–1977	Oldsmobile	Cutlass Supreme	Colonnade
1974–1975	Oldsmobile	Cutlass Supreme	Cruiser
1975	Oldsmobile	Cutlass Supreme	Hurst
1988	Oldsmobile	Cutlass Supreme	Indy 500 Pace CAR
1988	Oldsmobile	Cutlass Supreme	International
1981, 1985	Oldsmobile	Cutlass Supreme	LS
1988	Oldsmobile	Cutlass Supreme	SL
1976	Oldsmobile	Cutlass Tiara	Base
1968–1972	Oldsmobile	F85	Base
1968–1975	Oldsmobile	Vista Cruiser	Base
1982–1986	Pontiac	Bonneville	Base
1982–1986	Pontiac	Bonneville	Brougham
1984–1986	Pontiac	Bonneville	LE
1988	Pontiac	Fiero	Formula
1988	Pontiac	Fiero	GT
1988	Pontiac	Fiero	Sport
1988	Pontiac	Fiero	Value Leader
1973–1975, 1978–1980	Pontiac	Grand AM	Base
1975–1981	Pontiac	Grand Lemans	Base
1975, 1977–1981	Pontiac	Grand Lemans	Safari
1969–1974, 1976–1987	Pontiac	Grand Prix	Base
1981–1987	Pontiac	Grand Prix	Brougham
1984–1987	Pontiac	Grand Prix	LE
1975, 1977–1983	Pontiac	Grand Prix	LJ
1975–1980	Pontiac	Grand Prix	SJ
1968–1973	Pontiac	GTO	Base
1970–1971	Pontiac	GTO	THE Judge
1971	Pontiac	Lemans
1968–1981	Pontiac	Lemans	Base
1972–1974	Pontiac	Lemans	Luxury
1969–1970, 1973–1975, 1977–1981	Pontiac	Lemans	Safari
1974	Pontiac	Lemans	Safari Luxury
1970–1977	Pontiac	Lemans	Sport
1968–1970	Pontiac	Tempest	Base
1968–1969	Pontiac	Tempest	Custom
1970	Pontiac	Tempest	GT
1968–1969	Pontiac	Tempest	Safari