It's funny my 1966 Xp Falcon & a mates 1957 Fairlane 500 has a dimmer switch yet in the 70's they decide to go backwards go figure.

I assumed that the lucas units wouild be the ones as they were used on a lot of Mustangs etc. Ok so are the Wipac units made of unobtainium or can they be sourced locally.

Good idea reversing the switch might be doing the same thing.

JR I have sent you a package of switches today, can you let me know when they arrive.