UMI Performance 78-88 GM G-Body 82-03 S10/S15 Front Lower A-arms Coilover Only

UMI’s 3057-1 lower a-arms arms feature a relocated ball joint cup which offers 10 degrees caster when used with our P/N 3056 upper arm while keeping the spindle pin centered. The 3/4” taller Howe ball joint works to optimize the roll center, lower the center of gravity and lowers the ride height ½”. The double shear shock mount is removable which permits spring and shock changes at the track in minutes without disconnecting the ball joints. An aluminum steering stop is adjustable and limits steering lock to prevent tire and wheel damage. UMI designed Delrin bushings help the 3057-1 travel smoothly for bind-free operation whether running street, strip, road race or auto-x. Also included is a double shear sway bar mounting system which accepts UMI sway bars and many other manufacturers stock location aftermarket units. Available in UMI red or black powder coat. 100% designed, manufactured and raced with pride in the USA. Battle tested on the iconic UMI Green Machine
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1978-1987	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
1983-1986	Buick	Regal	T-Type
1978-1987	Chevrolet	El Camino	Base
1978,1981-1986	Chevrolet	El Camino	Conquista
1979-1981	Chevrolet	El Camino	Royal Knight
1978-1987	Chevrolet	El Camino	SS
1978-1981	Chevrolet	Malibu	Base
1978-1983	Chevrolet	Malibu	Classic
1978-1980	Chevrolet	Malibu	Classic Estate
1978-1981	Chevrolet	Malibu	Classic Landau
1979-1980	Chevrolet	Malibu	Classic Sport
1979-1980	Chevrolet	Malibu	Estate
1979	Chevrolet	Malibu	Landau
1979	Chevrolet	Malibu	Police
1979-1980	Chevrolet	Malibu	Sport
1979,1981-1988	Chevrolet	Monte Carlo	Base
1983	Chevrolet	Monte Carlo	CL
1978-1981	Chevrolet	Monte Carlo	Landau
1986-1988	Chevrolet	Monte Carlo	LS
1978,1980	Chevrolet	Monte Carlo	Sport
1983-1988	Chevrolet	Monte Carlo	SS
1991	Chevrolet	S10	Baja
1982-2003	Chevrolet	S10	Base
1982-1990	Chevrolet	S10	Durango
1992-1993	Chevrolet	S10	EL
1994-2003	Chevrolet	S10	LS
1982-1989	Chevrolet	S10	Sport
1994-1998	Chevrolet	S10	SS
1982-1992	Chevrolet	S10	Tahoe
1999-2003	Chevrolet	S10	Xtreme
1994-2003	Chevrolet	S10	ZR2
2002-2003	Chevrolet	S10	ZR5
1983-1994	Chevrolet	S10 Blazer	Base
1987-1989	Chevrolet	S10 Blazer	High Country
1994	Chevrolet	S10 Blazer	LT
1983-1990,1992	Chevrolet	S10 Blazer	Sport
1983-1988,1990-1994	Chevrolet	S10 Blazer	Tahoe
1991-1994	Chevrolet	S10 Blazer	Tahoe LT
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
1982-1990	GMC	S15	Base
1987	GMC	S15	EL
1983,1986-1988	GMC	S15	Gypsy
1982-1990	GMC	S15	High Sierra
1982-1990	GMC	S15	Sierra Classic
1982	GMC	S15	Sierra Grande
1983-1991	GMC	S15 Jimmy	Base
1983-1990	GMC	S15 Jimmy	Gypsy
1985	GMC	S15 Jimmy	High Sierra
1983-1990	GMC	S15 Jimmy	Sierra Classic
1991	GMC	S15 Jimmy	SLE
1991	GMC	S15 Jimmy	SLS
1991	GMC	S15 Jimmy	SLT
1988-1989	GMC	S15 Jimmy	Timberline
1991-1993	GMC	Sonoma	Base
1992	GMC	Sonoma	GT
1994-2004	GMC	Sonoma	SL
1991-2001	GMC	Sonoma	SLE
1993-2004	GMC	Sonoma	SLS
1980	Oldsmobile	Cutlass	Base
1980-1981	Oldsmobile	Cutlass	Brougham
1980-1981	Oldsmobile	Cutlass	LS
1978-1979	Oldsmobile	Cutlass	Vista Cruiser
1979	Oldsmobile	Cutlass	Vista Cruiser Brougham
1978-1984	Oldsmobile	Cutlass Calais	Base
1983-1984	Oldsmobile	Cutlass Calais	Hurst
1982-1983,1988	Oldsmobile	Cutlass Ciera	Base
1982-1988	Oldsmobile	Cutlass Ciera	Brougham
1984-1985	Oldsmobile	Cutlass Ciera	Cruiser LS
1983,1985-1986	Oldsmobile	Cutlass Ciera	ES
1985-1987	Oldsmobile	Cutlass Ciera	GT
1985-1986	Oldsmobile	Cutlass Ciera	Holiday
1988	Oldsmobile	Cutlass Ciera	International
1982-1988	Oldsmobile	Cutlass Ciera	LS
1986-1988	Oldsmobile	Cutlass Ciera	S
1986-1988	Oldsmobile	Cutlass Ciera	SL
1980-1983	Oldsmobile	Cutlass Cruiser	Base
1980-1981	Oldsmobile	Cutlass Cruiser	Brougham
1978-1979,1985-1986	Oldsmobile	Cutlass Salon	442
1978-1980,1985-1987	Oldsmobile	Cutlass Salon	Base
1978-1980	Oldsmobile	Cutlass Salon	Brougham
1979	Oldsmobile	Cutlass Salon	Hurst
1987	Oldsmobile	Cutlass Supreme	442
1978-1988	Oldsmobile	Cutlass Supreme	Base
1978-1987	Oldsmobile	Cutlass Supreme	Brougham
1988	Oldsmobile	Cutlass Supreme	Classic
1988	Oldsmobile	Cutlass Supreme	Classic Brougham
1988	Oldsmobile	Cutlass Supreme	Indy 500 Pace Car
1988	Oldsmobile	Cutlass Supreme	International
1981,1985	Oldsmobile	Cutlass Supreme	LS
1988	Oldsmobile	Cutlass Supreme	SL
1982-1986	Pontiac	Bonneville	Base
1982-1986	Pontiac	Bonneville	Brougham
1984-1986	Pontiac	Bonneville	LE
1978-1987	Pontiac	Grand Prix	Base
1981-1987	Pontiac	Grand Prix	Brougham
1984-1987	Pontiac	Grand Prix	LE
1978-1983	Pontiac	Grand Prix	LJ
1978-1980	Pontiac	Grand Prix	SJ