I'm trying to help my grandson refurbish a 75 Ford F250 and haven't been able to locate the correct wiing diagram. I did find one for a '76 Bronco but the instrument cluster connection has a different diagram. I specifically am trying to locate where the violet resistance wire ties into the ignition. Previous owners cut out much of the wiring in previous modifications. Is there a website I can go to to find the correct diagram? Preferably a free download because of my cheap nature.
Dan

Dan