I wired my horns in series when I switched to 12-v. I didn't want the first in the series to be grounded so I used several sheets of plastic (from a plastic milk jug) under its base and nylon bolts and nuts to hold it on the firewall. I don't know if this was necessary but it seems it couldn't hurt.
1948 3/4-Ton 5-Window Flatbed Chevrolet 34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.
