I've got a 1965 Ford Falcon from my father, it was his first car and now it's my turn to take care for it.
Some parts need to be rebuild and it's a great challenge to figure out how to do it or find spare parts, specially in my country.
When I was rebuilding the electrical system the problem was to find a replacement, because I could't find it I had to rebuild it and this is how I did.
Step 1: Identify your fuse box
This guide can be used for a lot of cars from the 1960's but I'll try to write specifically about the ford falcon/mustang/cougar ones.
Your fuse box must look like this: