Paul,
The '66 and '67 ignition switches are the same. The GM part numbers I've been able to turn up are #10132855, which replaces 1116673, which replaces 1116686.
Therefore, you should be fine with a connector from either year.
The '66 and '67 ignition switches are the same. The GM part numbers I've been able to turn up are #10132855, which replaces 1116673, which replaces 1116686.
Therefore, you should be fine with a connector from either year.