Hello,
Finally gathered all four NOS gauges for my 50' 3100. I have the new insulators for the rear (D/C & Fuel) gauge. When they are installed is there anything (Insulator) put on the back of gauge which presses up against the inside of the gauge cluster? Or does the insulators only protect the Rear from connections? I do not want to install and Fry those gauges. Thank you for any input.
Todd


1950 Chevy 3100