Wally, have not heard that in 50 years. Submarine races, brings back memories.
Old trucks may or may not have a fuse panel. Bottom line: Everything needs to be fused. I add fusible links on major feed lines from battery also. I also recommend a Voltmeter not an ammeter, for safety. Carl and I are in the same paranoid group therapy program at the hospital via skipe.
"I disconnect my battery at night on old trucks." There, I've said it.
