Anybody happen to know the size of a CJ7 factory tach? Specifically the size of the dash opening. I am running an MSD 6 box, wires, distributor and coil and am having a hell of a time getting the factory tach to work.
I purchased MSD's "tach adaptor" but I guess I am too stupid to make it work.
MSD said that all Auto Meter tachs just plug into the recepticle on the side of the box.
Anybody know the size off the top of their head?
Thanks!