I mounted a vintage 1-quart brass Pyrene fire extinguisher on the passenger side kick panel near the Harrison heater in my '48. The tank is empty of the carbontetrachloride. The mounting holes for the bracket fit exactly with the pre-existing holes in the sheet metal! Please see the picture in the link below:

http://s160.photobucket.com/user/st...age_zps1407846f.jpg.html?sort=2&o=88

I believe that the Pyrene extinguisher is a perfect fit for the old road department service vehicle. Another set of "mystery holes" in the cab has been solved.

By the way, I do carry a modern fully-functional fire extinguisher in the bed of my truck. It is located in a tool trunk that travels with me wherever I go.

1948 Chevy 1/2-Ton 5-Window Deluxe
More pix in the Bolt Bucket