I put a pusher electric fan on the front of the radiator of my 1942 Chev PU...left the original fan in place...
I put a switch under the dash so that if I see the truck running hotter (sitting in traffic here in Texas during the summer) I can turn on the electric fan to help cool it. No need to run the electric fan all the time but will be nice to use when needed. Easy to install using
Horvath's electrical tips on his web site wiring in two relays inline to make the wiring safer.
