I should have said " Dodge Ram Trucks, for instance" instead of how I phrased it. I've been in the car business for 28 years now and own and have owned several car dealerships. We( my team of mechanics) have reconditioned (read "fixed") plenty of vehicles ( thousands) and have seen lots of electric fans that don't work properly. Usually a switch. But we're talking about a Duster with a 440, and I don't see an a/c compressor, do you? In my time Hot Rodding I've come to appreciate simple solutions ( not simple people ) that work well and most likely won't leave me stranded somewhere. When it comes to old cars with pieced together, non-factory setups, yes, I probably do worry too much. Especially if I have alot of money and time invested. Every time I fire-up one of my cars I'm listening, looking, smelling and feeling. Just trying to help and offering ideas, like the man asked. PS you're a classy guy for a moron