John, I think you mean like the Ahrens Fox pumpers like the one that was at Macungie last year..
I would be interested to know this worked.
Like this, (sorry I don't know how to shorten the link)
http://images.google.com/imgres?imgurl=http://www.firegold.com/images/FFfoxpump.jpg&imgrefurl=http://www.firegold.com/fox2.htm&usg=__jyxoSV_v2Cswb5FEOZs7TcOiqd4=&h=361&w=480&sz=34&hl=en&start=52&um=1&tbnid=tVAltUJIgYBSLM:&tbnh=97&tbnw=129&prev=/images%3Fq%3Dahrens%2Bfox%2Bfire%2Btruck%26start%3D36%26ndsp%3D18%26um%3D1%26hl%3Den%26sa%3DN
