On my '54 I have a huge round hole at the bottom of the A pillar right through the dash.
My first tought was to simply fill it, but now I'm thinking on installing a spotlight.
Does anybody have an idea what make would fit into this hole?
It doesn't look like it was drilled for a Unity.

 

I had a cab just like that here it is now


F1 cab had rotted A pillar from spot light
It was rotted at the parking brake, and the a pillar/dash cowl maybe a good look under that area