I have rebuilt my generator for my 1937 Pierce 8 and it works fine.
However the voltage regulator is bad.
What do you recommend I purchase for the best in class voltage regulator?
Money is no object! ( well not really )
A 37 eight has a cut out regulator, set up for a startix, not an easy item to come with at any price, a correct Owens unit took me 23 years to find. Aftermarket autolite and Delco can be found much easier but not cheap. Rebuild you old on if it is correct. Ed