I might be all wet but I don't believe they stated "Tractor Trailers'.... all I recall is truckloads. I own a truck too, so I take that stuff with a grain of salt until the Pr's become clear... as they should be to start with.
Currently, the company is producing approximately 2.5 truckloads per day (53ft trailers) and will continue to do so for the foreseeable future into 2010