UMI Performance 78-88 GM G-Body 12-Bolt Swap Adjustable Upper Control Arms- Roto-Joints

UMI Performance’s 12-bolt swap control arms are designed to bolt a 1964-1972 GM A-Body 10-Bolt or 12-Bolt rear end into a 1978-1988 GM G-Body; this includes Monte Carlo, Malibu, El Camino, Regal, Grand National, Grand Prix and Cutlass. These upper control arms are built at the correct angle to attach to the G-Body chassis as well as the A-Body rear end “ears”. These upper control arms are a must any time this swap is being completed. Using the factory control arms will cause drastic rear end bind and incorrect driveline angle, this leads to traction lose, vibrations and unsafe handling. These control arms are supplied adjustable for easy on car adjustability to set correct pinion angle and allow adjustment for installation if needed. Adjustments are made using an aircraft quality 4140 chromoly heat treated adjuster and UMI spherical Roto-Joint’s. The Roto-Joint allows rear end free movement when high handling, auto cross or road race is a concern but also works excellent as a drag race item by eliminating rear end bind. Upper control arms feature TIG welded construction, 4140 chromoly tube adaptors to ensure thread durability and brilliant powder coat.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1978-1987	Buick	Regal	Base
1988	Buick	Regal	Custom
1982-1983	Buick	Regal	Estate Wagon
1987	Buick	Regal	GNX
1984-1987	Buick	Regal	Grand National
1978-1988	Buick	Regal	Limited
1982	Buick	Regal	Limited Turbo
1978-1982	Buick	Regal	Sport
1983-1986	Buick	Regal	T-Type
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
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
1978-1988	Pontiac	Grand Prix	Base
1981-1987	Pontiac	Grand Prix	Brougham
1984-1988	Pontiac	Grand Prix	LE
1978-1983	Pontiac	Grand Prix	LJ
1988	Pontiac	Grand Prix	SE
1978-1980	Pontiac	Grand Prix	SJ
1988	Pontiac	LeMans	Aerocoupe
1988	Pontiac	LeMans	Aerocoupe YL
1978-1981,1988	Pontiac	LeMans	Base
1978-1981	Pontiac	LeMans	Safari
1988	Pontiac	LeMans	SE
1988	Pontiac	LeMans	Value Leader