Kenworth Truck Co. offers an aftermarket crew cab conversion by Bentz Transport Products for T170, T270 and T370 medium-duty conventionals. The crew cab adds 52 inches of interior length and up to 61 inches of interior height, and is 84 inches wide at the rear. BBC is 157 inches. It uses a one-piece fiberglass roof with an aluminum cab structure, and is standard with DayLite doors, grey Vinyl interior trim, and DuPont Imron Elite single stage paint. Options include an extended horizontal exhaust pipe, separate heater or heater/air conditioner, exterior access steps, carpet and custom trim packages, and base/clearcoat paint. Bench and bucket seats are available, in addition to fire service SCBA seats. Kenworth dealers have information.