Please help! I'm having a Meltdown!

I made the mistake (go ahead and kick me) of putting a NAPA Chinese re-manufactured alternator on my '70 Dart in February. It was defective and both field terminals were grounded. Perhaps it was a newer case re-manufactured to be used on a pre-1970, I don't know. At any rate I melted my blue field wire all the way up to the ignition switch. As mentioned above check that those field wires terminals are not grounded if being used on a two wire 1970 and on car. If I ever have to replace an alternator again, it's the first thing I'll do after I open the box.