I've got an American LaFrance pumper on a 61 GMC pug nose chassis. It's running the 401 V6 and a direct drive 5th. gear Clark transmission. Since the tank has a big hole rusted in it and most of the plumbing is missing, I've got plans to remove the fire bed and replace the driveline mounted pump with a 3 speed Brownie transmission. That will give me 15 forward speeds including overdrive in 5th. and maybe slightly better gas mileage- - - -from outrageously bad to merely horrible, probably! I'll install a commercial 5th. wheel and a goose neck trailer hitch, and pull any trailer I feel like backing up to! That project is about 10th. in line right now!
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!