[ray_mcavoy]

tilt column wiring
1) black = horn ... the horn button grounds this wire to activate the horn relay
2) purple = feed from flasher
3) light blue= LH front turn signal
4) white = feed from brake light switch
5) dark blue = RH front turn signal
6) gray = illumination for auto trans gear indicator
7) yellow = LH rear turn signal & LH brake light
8) green = RH rear turn signal & RH brake light
9) brown = feed from hazard flasher (your 65 won't have this)

65 wiring harness
1) black = horn (same as the black wire on the tilt column)
2) purple = turn signal feed from flasher (same as purple wire on tilt column)
3) light blue= LH front turn signal (same as lt blue on tilt column)
4) white = feed from brake light switch (same as white on tilt)
5) dark blue = RH front turn signal (same as dk blue on tilt)
6) gray = illumination for auto trans gear indicator (same as tilt)
7) yellow = LH rear turn signal & LH brake light (same as tilt)
8) green = RH rear turn signal & RH brake light (same as tilt)

So with the exception of that brown hazard flasher feed, all of the other wires should be a direct color to color match. If that doesn't work (and everything was working okay before the tilt column swap) I would suspect a defective switch in the tilt column.