Overvoltage problem I have a 53 1 ton with a 292 engine. Previous owner converted it to 12 volt. It had an aftermarket gauge cluster installed, Temp gauge, amp meter and oil pressure gauge. The oil pressure was the only gauge working, so I replaced it with another cluster only with a voltmeter this time. Temp and Oil gauges work fine but the voltmeter was zapped by a high voltage and stuck at 16 + volts. I replaced the voltmeter with a better grade meter but it still reads about 16 to 18 volts. This gauge is wired positive off the ignition switch and other side to ground. I thought that the regulator in the alternator was defective so I replaced the alternator. Still the same problem, I might mention that the low beams were both out when I got the truck, high beams were OK. I think that the higher voltage might have blown them. The only thing I can think I can do is trace the wiring and see if there is anything I can find there. Anyone have any ideas on what is causing this? Thanks in advance