This video below details how to wire a classic era Ford voltage regulator. The car it's demonstrated on is my 1973 Ford Pinto station wagon, but it's wired the exact same as my 1967 Ford F250.

https://m.youtube.com/watch?v=o8cE9VMwflU

 

Thanks for posting that up.
But for others watching, it's only the correct way if your truck has a battery charge indicator lamp. And perhaps if your truck is a pre-70 with the different setup. I don't actually remember when Ford changed to what became the "modern" system of the time.
If your truck is a later model (maybe '70 and later?) and has an ammeter (amp gauge) in the cluster instead, then your alternator voltage regulator is wired very different. I guess I should consult the diagrams over on Fordification or elsewhere here, to see when exactly the change came about.
For trucks and cars with the warning lamps, the regulator gets all four connection points wired (IASF) like yours did. For trucks and Broncos with an ammeter, only three are utilized (ASF). And only the F and A wires remain in the same positions. The stator wire has only one function in those cases, and that's to power up an electric choke on the carburetors. Generally after the '73 model year.
Just so you know that there are variations on the theme.

Thanks again for going to the trouble of filming your conversion. I've seen some variations on that 1-wire theme before. I think even Ford had some type of box bolted to the back of some the alternators at one point. Even before the advent of internally regulated and 1-wire alternators.
Never got to mess with the type you had though.

Paul

 

I got rid or the ancient external regulators on both of my trucks. Cleans up the inner fender and makes for a better charging system.

 

Did you upgrade your alternator is how you accomplished this

 

I have a 3 wire 10si on my 63 Unibody, GEN light still works. I have a 94 Mustang 3G on my 72 short bed. They're both fairly easy upgrades.