i'm swapping out my 6 volt to 12 volt on my 54 chev car . all bulbs etc. the blower motor is turning out to be a bit of an issue . has any one tried running the old 6 volt motor on 12 volts . will it last . i've got a few 12 volt motors from 56 cevys but they are quitting on me . too long in the elements i guess . these aren't easy to swap out so i want something that will last . if the original 6 volt motor is going to burn out in a short while i'll keep looking for a 12 .