Try e-bay and/or Hemmings Motor News.
Chilton Repair manuals
Most repair manuals have the wiring diagrams in them.
You can find a wiring diagram for a Ford Courier 2003 model in most Chilton's manuals or repair manuals for that vehicle. The wiring diagram will include fuse locations as well as wiring locations.
autozone.com has online repair manuals
You can find an online repair manual for a 1993 Ford Ranger on websites like AutoZone, Haynes, or Chilton, which offer repair guides for various vehicle models. Additionally, forums dedicated to Ford Ranger enthusiasts often share resources and links to manuals. Websites like eBay or Amazon may also have physical or digital copies of repair manuals available for purchase.
You can download free car repair manuals for a Ford Taurus at http://www.slideshare.net/bossimail/ford-taurus-service-manual-repair-manual-20002007-download. You can either print out the page you need or you can print out the whole manual. If you'd like a visual explanation, you can go to http://www.youtube.com/watch?v=4YPj_Cp87tg.
You can find a diagram of a Ford E350 Bus in several places, including the official Ford website, where service manuals may be available. Additionally, automotive repair websites like Haynes or Chilton often provide diagrams in their manuals. Online forums and communities dedicated to Ford vehicles may also share diagrams. Lastly, platforms like eBay or Amazon may have printed repair manuals that include detailed diagrams.
The Chilton's Repair Manuals has decent body part diagrams.
A wiring diagram for the 1995 Ford F350 towing package can be found in the maintenance and repair manuals. The manuals can be found at a local auto part store.
You can find a diagram for a 1984 Ford Bronco II steering column in several places. Online resources such as automotive forums, repair manuals, or websites like Haynes or Chilton may provide detailed diagrams. Additionally, you can check the official Ford service manuals or search on platforms like eBay for physical copies of repair manuals. Lastly, automotive parts stores may also have repair guides that include the diagrams you need.
You didn't mention what model tractor, but there are many places online that sell manuals for tractors of this age. Search for "tractor repair manual ford 1964" and you will find them.
Look up 2000 Ford Ranger in the RockAuto.com parts catalog and find repair manuals under Literature. The 2000 Ranger repair manual is on DVD - ROM for about $14.