Scott
I've got a 1962 and a '63 Chev. 80 series tractors with air horns (same cab as yours) that I'll try to get pictures of this weekend. As Bill said they are mounted on the drivers side roof edge just as the roof starts to roll down. Mine are the original dual trumpet type that were factory installed when new. The 'chain pull' air control for the horn was mounted to the left of the driver, with the chain hanging down just a slight bit.
James
Last edited by oldiron57; 10/30/2009 11:31 PM. Reason: clarification