I did determine that the dash lights are not turned all the way down so it probably is the rheostat. I'd like to take the suggestion to connect them to the taillight terminal.

I'm trying to orient my switch with the diagram in the manual but I'm not sure what's what.

Can any of you tell me which terminals on this switch should be taillight and dash light?

It's a pretty crummy pic so I can squeeze under there and try to get a better one if necessary.
Attachments
Roy's Truck Headlight Switch 2.jpg (64.1 KB, 114 downloads)
Roy's Truck Headlight Switch.jpg (54.31 KB, 110 downloads)

1950 Chevrolet 3100 (Ol' Roy)

1939 Packard Standard Eight Coupe (The Phantom) | 1956 Cadillac Coupe de Ville (The Bismarck) | 1964 Ford Galaxie 500 coupe |1966 Ford Mustang (Little Red) | 1969 Pontiac GTO (The Dishpit) I 1979 Ford F-100 | 1976 Ford F-150 (Big Red) | 1995 Ford F-150 (Newt)