my 1954 1/2 ton had 12v set up when i got it. What got me to wondering about whether the 12v system was factory original is the fact that the wiring is all the small gauge wire with plastic insulation. I don't think this pickup has ever had the wiring changed and several other 54s i have worked on in the past have had the bigger gauge wiring that is consistant with 6volt systems. Anyone got the scoop on this or am i just missing something thats common knowledge for everyone else. Just wondering. thanks in advance for any replies.