I have a '68 tilt column in my truck. Should have ( 8 ) wires in harness. Black=horn, Lt. Blue=LF turn signal, Dk. Blue=RF turn signal, Brown=Hazard Flasher, Purple=Turn Flasher, Yellow=LR Turn signal, Green=RR Turn signal, White=Stop light switch. There may also be an additional wire to the small light bulb at the shift indicator.

1940 Chevy KC 1/2-Ton
In the Stovebolt Gallery