Where does the switch for the 4-way flasher switch mount? IIRC it is in the glove box, but none of the existing holes line up. (The switch was on the floor when I got the car) Does it mount onto the cardboard box?
There are two styles, depending upon the date in 1966. The cut-off date is March 15, IIRC. For the early model, there's a metal backing plate that goes on top of the cardboard glove box, and the switch assembly bolts through the glove box into the backing plate.