[Excaliber]

I don't know where the diagram came from but it is certainly misleading and NON STANDARD for any application I can think of.

It shows a FORD stlye solenoid at the top and a GM style solenoid on the starter.

Typical Ford starter does NOT have a solenoid on the starter. Virtually EVERY GM product DOES have a solenoid on the starter. Either way works, using BOTH ways also can work, but sure makes life complicated! Use one or the other please!