Made from billet alum. and will provide the most strength supporting today's mags with dreaded tire shake. Drive coupler works with all MSD 12, 20, 44 generators and most Mallory Super mags that use the Dunn cross drive. It also uses a bronze gear that works well with most of today's camshafts.
RBS carries the Dunn cross for customers that may need to switch from a two or four pin Mallory drive under part #2500-0011.