Where do I start, I purchased a 1951 GMC 451 back in July/August. I was told by the seller that he converted it over to a 12v system, but upon further inspection he installed a 12v battery, the negative battery cable is going to a bolt on the transmission, and the positive is going to the starter. From what I've read in "Tech Tips" the positive cable should be on the negative post and vice versa for the negative cable. Is that correct or am I missing something? Would the 6v electrical components/bulbs still work or would they all need to be replaced with 12v equivalents? I'm not opposed to keeping it all original, I'm just not sure where to begin. The wiring itself is a mess. I'm sure I'll need to rewire the whole thing at some point. I just want to get it operational at this point. Does anyone know of a vendor the makes a wiring harness for "Big Bolts" I've seen plenty for pickups. Thanks in advance for any and all help.
