I'd check the generator. Just a WAG, but maybe the brushes are dirty from sitting? Sounds like your voltage is varying. IIRC, the dimmer switch connections would only affect the headlights being downstream of the headlight switch and dash lights.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
