Ford products used 6 volt positive ground through 1954.

Mike

> > On any car but old english ones, the negative is the ground, and it's
> > strapped to the car frame somewhere. So you could say that everything
>
> <snip>
>
> I'm almost certain I remember old Fords also being positive ground (eg
'49).
>  But my memory - she ain't what she used to be.  Sigh ...  //Jack