UMI’s Grade 8 bolt upgrade kit is recommended when installing an aftermarket torque arm on the factory rear end and all similar rear housings that use the long through bolt design. Supplied with the kit are longer 9/16" Grade 8 bolts which accommodate the thicker torque arm mounting plates. Factory bolts will work with aftermarket torque arms however they may not have adequate amount of threads which could lead to failure and be unsafe.

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