Does anyone on this forum have a wiring diagram to convert a GM style turn signal switch to the original 67 cougar wiring harness in the dash ?
I have been asked this several times at work and don’t have a good answer. With all the relays and brake over rides the GM switch is just not compatible. What you can do is use the system to convert a three light taillight to a sequential system. WCCC sells these part number #26698. This will give you sequential lights with a flasher can adapter for the flasher. It is going to be a pain in the butt if you still have an original car wiring harness. I have not done this my self but have been told it does work. I would research this carefully as I have questions as to how some things would work. I think you would be time and money ahead staying with a Ford tilt.