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This is the wiring diagram for the 1957 Studebaker and Packard Clipper. This wiring diagram is very clear and very much readable.

You can see clearly every parts names and every connections. Some parts' names are: temperature gauge engine unit, breaker, oil pressure engine unit, direction signal, horn, overdrive relay, overdrive kickdown switch, ignition resistor, etc. As for connections, you can see them here shown by the names of colors, this color names refers to the cable color names.

Save this image into your PC for future wiring work with your car. Right click on image > save image as > save.