Well as far as I know, the round gauges went out in the 39 model year. The 40 and the art deco trucks had a sweep speedometer. That is of course on the pickups, but a fire truck? I'm sure someone more knowledgeable than me might know what the whole story is.
It appears to me that everything past the fire wall is custom or at least after market along the lines of school buses etc. I believe that even modern fire trucks are built in this way.
Any thoughts on this?
