UMI Performance 64-72 A-Body Boxed Lower Control Arms- Poly/Roto-Joint

UMI's boxed lower control arms utilize our Roto-Joint technology for a bind free performance and quiet comfortable ride quality. The boxed control arms are fabricated from 0.120" wall thickness rectangular tubing, CNC machined drawn over mandrel bushing holders and MIG welded end caps to keep out unwanted road debris. Each control arm features the correct provisions for adding a stock or aftermarket rear sway bar, sway bar holes are reinforced with a 0.120" wall thickness steel sleeve that is TIG welded and sanded into place. The solid construction combined with the delrin lined Roto-Joints eliminate control arm flex and bushing deflection for improved traction and reduced wheel hop. The installed Roto-Joint is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, more than adequate for a bind free, low friction operation. The Roto-Joint design improves performance over the factory rubber and aftermarket polyurethane bushings by allowing the suspension to articulate correctly, and provide precision handling. The installed UMI Roto-Joint allows rear end free movement when high handling, auto cross or road race is a concern while still being a 100% streetable setup. The installed delrin race, which lines the spherical ball, absorbs shock and road noise for a quiet and smooth operation on any street or track driven vehicle. This control arm set features polyurethane bushings on one end and UMI's swivel Roto-Joint on the other end. This set-up is designed for street performance and street enthusiast. The polyurethane bushing end is designed to be bolted to the vehicle chassis side while the Roto-Joint attaches to the rear end side. Since the polyurethane bushings are softer they are designed to absorb more road noise and shock before it enters the passenger compartment of the vehicle.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1965-1967	Buick	Gran Sport	Base
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
1970,1972	Buick	Skylark	350
1964-1972	Buick	Skylark	Base
1968-1972	Buick	Skylark	Custom
1964-1969	Buick	Special	Base
1964-1967	Buick	Special	Deluxe
1964-1972	Buick	Sportwagon	Base
1966,1968-1969	Buick	Sportwagon	Custom
1967-1968	Chevrolet	Chevelle	300
1967-1969	Chevrolet	Chevelle	300 Deluxe
1964-1968,1970-1972	Chevrolet	Chevelle	Base
1967-1972	Chevrolet	Chevelle	Concours
1969-1972	Chevrolet	Chevelle	Concours Estate
1965-1967	Chevrolet	Chevelle	Deluxe
1969-1972	Chevrolet	Chevelle	Greenbrier
1968-1972	Chevrolet	Chevelle	Malibu
1968-1972	Chevrolet	Chevelle	Nomad
1964-1972	Chevrolet	Chevelle	SS
1964-1972	Chevrolet	El Camino	Base
1968-1972	Chevrolet	El Camino	Custom
1968-1972	Chevrolet	El Camino	SS
1964-1967	Chevrolet	Malibu	Base
1970-1972	Chevrolet	Monte Carlo	Base
1971-1972	GMC	Sprint	Base
1972	GMC	Sprint	Custom
1964-1971	Oldsmobile	442	Base
1964-1972	Oldsmobile	Cutlass	Base
1972	Oldsmobile	Cutlass	Cruiser
1964-1967	Oldsmobile	Cutlass	Holiday
1968,1971-1972	Oldsmobile	Cutlass	S
1967	Oldsmobile	Cutlass	Turnpike Cruiser
1964-1972	Oldsmobile	Vista Cruiser	Base
1964-1967	Oldsmobile	Vista Cruiser	Custom
1969-1972	Pontiac	Grand Prix	Base
1964-1972	Pontiac	GTO	Base
1970-1971	Pontiac	GTO	The Judge
1964-1972	Pontiac	LeMans	Base
1972	Pontiac	LeMans	Luxury
1969-1970	Pontiac	LeMans	Safari
1970-1972	Pontiac	LeMans	Sport
1971	Pontiac	LeMans	T37
1964-1970	Pontiac	Tempest	Base
1964-1969	Pontiac	Tempest	Custom
1970	Pontiac	Tempest	GT
1964-1969	Pontiac	Tempest	Safari