I know this question has been asked before but I haven't found any definitive answers in the archives. I have a 1949 Oliver 77 RC gas tractor which had been used in the past for pulling. It only had a battery, starter, coil, and distributor. All the diagrams in my Oliver manuals and those on line are positive ground and most show how to convert to an alternator. I'm restoring this tractor to original condition except it will be a negative ground 12 volt system with a generator and 4 post voltage regulator. I have had the starter and a salvage generator rebuilt for 12 volt negative ground. The pulley is correct and I got a new wiring harness plus all new lights and wiring harness plus a new ignition switch etc. The only help I need is how to correctly wire the generator to the voltage regulator. The voltage regulator has four posts: F, Bat, L, and underneath the v/r what appears to be a ground for the Field. The generator has two posts: A and F. I have been researching the correct way and every time I think I have it figured out something doesn't look correct. I don't want to wire it wrong and have a fire or cook a couple of expensive parts. We had a friend burn up his Farmall antique when the V/R shorted out and it started a fire in the wiring harness. I know this isn't rocket science but I would like some confirmation of what is the correct way to do this restoration. Thanks for your support.