Where can I find the info on how to do a 6v to 12v conversion ?

 

There are a number of threads discussing conversions. The real answer is that it depends on what you're doing. If you want to put in a 12v alternator and battery, but keep the original gauges, there are a couple of approaches. If you're replacing the gauges with all modern gauges that are 12v, then the answer is probably a new universal electrical harness. For around $200 you get more wire than you can buy in rolls for that price, but it will include a modern fuse block. There are several available....the Painless wiring harnesses are around $300, but occasionally they have a $100 rebate. There are a couple of other brands that members here have used....hopefully they'll weigh in with brand names.

If you are going the route to keep the original gauges, there is a kit from Speedway Motors with a voltage reducer...they also have a book on the subject which I hear is pretty good (although I haven't actually read it myself).

Dan

 

Interesting, this got me looking.
Here is a link to the book Dan mentioned cheaper than Speedway motors.
Fifth Avenue Internet Garage

Here is a link to a thread discussing it. Post #2 has a link to a PDF article.
https://www.ford-trucks.com/forums/1...2-battery.html