I have an 86 Chevy Military 6.2L 24 Volt system. The truck was all apart when I got it and I hooked the batteries up in series. There is a junction block @ the firewall that has 24 Volts. The problem I am having is if I hooked up the wires to the alternator on the right it sparks like it's a short to ground. Does anyone know where the wires go that are 24 volts on the alternator? The one on the driver side has 12 volts at the wires. I'm lost!