Check Old Online Chevy Manuals website and look under 1951 accessories and it gives installation instructions for the heater. Not much to it. chevy.oldcarmanualproject.com will get you there. My setup uses a switch, off-low-high, vs the toggle but I suppose a toggle would also work but only give an off-on connection.
Last edited by Forty9; 06/20/2021 5:13 PM. Reason: More info
