Gosh dude, You need to answer some questions. Are they electric or bulb type? If electric, you can use a varable resistor (often called a pot) to simulate a sender unit. Bulb type is another horse. You might also contact someone like John Wolf in Ohio or your favorite gauge repair person who could tell you what you will need. Another route may be to look in some old repair manuals. I purchased one off ebay which covers about all the gauges from '35 to '48. Not like today, it explains the "innards" of various manufactures of gauges. Ain't it fun! BTW, the old Stewart-Warner company is no more. I tried to talk old gauges to their sales reps at a car show and I knew more about their old gauges than they did.
Last edited by beltfed; 05/01/2009 12:43 AM. Reason: addition
