Features a simple one-wire hookup and comes with a 3/8" wide belt pulley, Has the look of an original generator, but is really a 12-volt, negative-ground, Produces 65 amps at idle and 75 amps going down the road with a top end of 90 amps, It is 1.5" shorter than standard generator and includes stock-appearing mounting brackets, Designed to fit GM applications up to 1964 models (except with generator mounted power steering pump).