My first truck was a 55 Dodge purchased used in the sixties. It had a bad motor and a early Hemi was installed. I had two glass packs on it and you could not have a conversation while driving. I went through eight manual transmissions. I got to the point I could change a transmission in ten minutes. A old salvage yard kept replacement transmission pulled and ready for me. Truck had a heater, AM tube radio. The truck had 15" tires. When I bought my new 98 Dodge truck the body style reminded me of my old 55. It had one fan belt that drove a generator and water pump/fan.
The fan belt broke one time on a Sunday evening a couple of hours from home with no parts stores open. I took off driving and the wind coming through the radiator spun the fan which turned the water pump, made it home without overheating.
I remember the old 6 volt system and hated it immensely.