THIS is what I put on my '38 years ago with no issues. There are a number of reasons to want to convert to an alternator and remain 6 volt. If your wiring connections are clean and you don't want to run a high power 12v stereo thumper, a 6 volt system is just as capable as a 12 volt on your truck. I also converted my '53 to an alternator but not the one I linked to because I picked one up at a swap meet. One thing you need to be aware of is your stock mount will not work with an alternator. You'll need to also buy/fabricate a mount.
