I read somewhere that before there was any industry standard FORD & CHRYSLER (remember the early autos were mostly 6 volt) used Pos ground cuz they believed it woull lessen galvanic corrosion where frame members joined while GM didnt jump on that same bandwagon early on I dont believe.
Much of the tractor industry used Pos ground on the early 6 volt units but as time passed and 12 volt came more popular they, like the auto industry standard, also went to Neg ground....
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Today's Featured Article - Allis Chalmers ED40 - by Anthony West. Allis Chalmers as a tractor manufacturer in its own riht is but a memory. However the number of AC tractors still in existence today as either restored or unrestored examples is a testament to the quality of their products. This in itself is always apparent here in the U.K when attempting a purchase, as no matter what the model or condition the price will always be strong.
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