UMI's on car adjustable lower control arms utilize our Roto-Joint technology for a bind free performance, quiet ride quality, and also offer on car adjustment. The control arms can be adjusted longer or shorter moving the rear end back or forward to accommodate larger tires in the fender wells. Adjustable control arms are also recommended for aftermarket rear end installs to center the rear end and prevent tire rubbing. The installed Roto-Joint is a pivot ball lined with a greaseable delrin race designed to offer 28 degrees of total unrestricted movement, improving performance and providing precision handling. The Chrome Moly version uses 1.250" x 0.095" 4130 Chrome Moly steel for increased strength and reduced weight. UMI's Roto-Joint allows 28 degrees of total rotation and unrestricted movement throughout the vehicle's suspension, preventing bind and improving traction. The Roto-Joint features a 4140 chrome moly, hard chrome plated spherical ball rotating in a delrin race for wear resistance and durability. The Roto-Joint is adjustable and rebuildable, ensuring longevity and performance. The spanner wrench is used for adjusting and disassembling Roto-Joints for maintenance and rebuilding.
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
1988,1993-2002	Chevrolet	Camaro	Base
1982-1986	Chevrolet	Camaro	Berlinetta
1993	Chevrolet	Camaro	Indianapolis 500 Pace Car
1985-1990	Chevrolet	Camaro	Iroc-Z
1987	Chevrolet	Camaro	LT
1989-1992,1996-1997	Chevrolet	Camaro	RS
1992	Chevrolet	Camaro	RS Heritage Edition
1982-1987	Chevrolet	Camaro	Sport
1982-1987,1991-2002	Chevrolet	Camaro	Z28
1992	Chevrolet	Camaro	Z28 Heritage Edition
1982	Chevrolet	Camaro	Z28 Indianapolis 500 Pace Car
1998-2002	Chevrolet	Camaro	Z28 SS
1982-2002	Pontiac	Firebird	Base
1989-2002	Pontiac	Firebird	Formula
1982-1986	Pontiac	Firebird	S/E
1982-2002	Pontiac	Firebird	Trans Am
1994	Pontiac	Firebird	Trans Am GT
1989-1992	Pontiac	Firebird	Trans Am GTA
1989	Pontiac	Firebird	Trans Am GTA SE