Upgrade your classic 1957 Chevrolet Fullsize with our high-quality Air Conditioning Lead Wire. Designed specifically for the 1955-57 models, this essential wiring component connects the blower motor resistor to the thermostat switch, ensuring optimal performance and reliability of your AC system. Our product stands out from the competition thanks to its durable construction and compatibility with the second design thermostat switch, allowing for hassle-free installation and long-lasting results.