Hello and thanks in advance. My friend's 1940 Plymouth is not running properly and he took it to a mechanic who told him that the battery, which is currently grounded on the positive side, is hooked up backwards and should be a negative ground. The mechanic wants to put in a new battery, rebuild the starter, etc. I think that he doesn't know jack about these cars. Everything that I have seen indicates that early 6-volt Chrysler cars had a positive ground. My 1934 Dodge has a positive ground. Is this mechanic wrong? Ken Sobel hypnotist01@sbcglobal.net