[KMeredith87]

I have an alternator on my pickup simply because I wanted to be able to run 12v accessories. Oh and it was already done by my grandfather before I got it. But I also picked up a delco remmy 10s for an old GM car, Vega maybe, and just swapped out the internal regulator for a self exciting one wire. Simple and cheap to do total cost was about $50. Don't forget though if you change to 12v there is more that will have to changed than the generator, i.e. light bulbs, negative ground, coils and things of that nature. Good luck!