Factory tach was in Cruising Wagons, Rallye's & some sport packages.
I have white face 3 3/8" Stewart Warner speedo & tach & 2 1/16" volt, oil press, water temp, air/fuel, fuel level & boost for my wagon. I plan to put the speedo & tach in place of the stockers. They will fit but it will take some fab work. The rest will be mounted like 78starsky did. Pinto guys have been doing it this way forever.