I took a trip to Craig’s 56 Chevy yard today. I got the needed light socket that goes behind the instrument cluster and a dummy cigarette lighter to fill the hole that will be left in the dash when I fix the 3 other big holes left from the gauges the previous owner put in.
I got a small piece of sheetmetal earlier in the week and cut it to fit the section of the dash where the gauges were. I measured out how big the cigarette lighter was and cut a hole in the sheet metal exactly where it needed to be. After attaching the piece to the dash and putting the replacement dash trim over it, you’d never know that gauges were there before!