Classic auto air install:will 72 duster heater controls fit 73 dash ????????

You can still tack in the tabs and it will be behind the bezel. And not yet on the classic air call

After looking closer it does look like it is just how it mounts, the hole opening looks to be the same. Hmm.. Either way there is going to be modding. I probably would just go with what Classic suggested on the mods to the switch, mine is in fine shape.