I have a 1966 F250 and original fuse box has broken connections and spliced wires. I would like to get fuse box back working.

 

Thank you to all the replies. I ordered the parts I needed from West Coast Classic Cougar.I had to do a little work on the box and clips but managed to get it all together. Will upload a pic when I get a chance.

Now my problem is trying to make sense of all the splicing. I have a black wire coming from the ignition to no where. Does anyone know where that one goes to?

 

Instead of trying to remember where some wires go,

What worked for me was to use a simple test light and determine if and when a particular wire had power. Then attempt to see what was not working and go from there.
Most times you would connect the ground clip to a good ground to verify power and connect the ground clip to a hot source and verify a ground connection.

On older vehicles there were not that many wires to be concerned with and you cannot always go by the color.