Reproduction turn signal cancel cam for 1963-66 Mopar A-Body and B-Body as well as various 1963-64 Ford and Mercury models as listed. Replacing the worn or cracked original cancelling cam will firm up a sloppy or loose turn signal arm and/or correct an inoperative turn signal switch that no longer cancels properly.Mopar Applications1963-66 A-Body1963-66 B-Body Important - Mopar Owners: Fitment for your Dodge or Plymouth vehicle depends on previous replacement of your switch. There were several replacement turn signal switch designs used over the years and there could be other cancelling cam designs that you need to consider prior to placing your order. Refer to part #'s MN2150 MD2142 and MD2095