Have a 1974 F100. Tried starting it the other day, cranked over a few times then stopped and now won’t do anything. Got a new starter, new solenoid, and new ignition switch and none of that worked. When I try to jump the starter from the solenoid it cranks over. So I’m not getting power from the ignition switch to the starter. Any ideas on what the issue would be?

 

Std or automatic ?

 

It is an automatic.

 

Do you at least have a test light?

With that you could clamp the ground clip of the test light to the small terminal on the relay that sends power to the starter when the key is turned to the start position .
If you place the pointed tip of the test light on a good ground , you should see if power is getting to the relay.when the key is turned to the start position. What do you get?
Some relays were mounted on the fender well and because of rust and corrosion the relay did not work. Make sure the relay mounting is mounted to a clean surface.

 

See if the engine will crank with transmission in neutral as a test.The transmission's neutral safety switch and associated wiring can prevent the engine from cranking.
With a clip lead, connect to the positive battery terminal and the small stud on your starter's fender mounted solenoid(relay) and see if the starter cranks.Easier and quicker than a test light.

 

I have tried jumping the starter from the solenoid and it does crank then. I will get a test light and see if there’s a bad wire or connection somewhere from the ignition switch to the solenoid.