. . "main frame" . "frame or chassis" . "frame rails" . "bus chassis" . "hull" . "Bare chassis" . "partially assembled chassis" . "Hull" . "chassis frame" . "frame rail" . . . . "18" . "underframes" . "Chassis" . . "chasis" . . . "metallic chassis" . "chassis" . "hulls" . . . "rifle chassis" . "ladder-type chassis" . . . . . "Chassis" . . . . "10" . "rolling chassis" . . . "unibody chassis" . "cruciform frame" . . "body structure" . . "truck chassis" . . . . "Vehicle Chassis" . . . "frames" . . . "car chassis" . "undercarriage" . "Car Bodies" . . "frame" . "underframe" .