I don't know about the terminals on your switch. However your ignition switch needs to turn the ignition and gas gauge on and off. The horn would not be switched. You can use an ohm meter to see how the switch works and go from there.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!