I just recently replaced a bad coil on my 76 Chrysler 609ha and now it seems like I may have blown the new one as well. I have spark going to the bottom coil but not to the top, replaced plugs and have a fully charged battery. Does anyone know if it's the coil or maybe the trigger for coil 1(the top coil and the one I've replaced). If it's the coil, can this be replaced with an aftermarket piece or does it have to be one from the original specs? Any help would be appreciated. Thanks.