In Reply to: Paczosa posted by Lee Paczosa on January 08, 2019 at 16:38:10:
Probably does not Have to be Positive ground but that is the way Ford engineered it. On a high performance engine, polarity to the coil is much more important. Hard to say if the generator has been polarized for negative ground. If it has and you change back it will have to be re-polarized.