JE660010 1/32 Peterbilt 379 On just about any highway in North America, a Peterbilt tractor-trailer can be seen hauling some type of load. This dependable truck has been in service for many years and is the pride of the fleet for many a trucking company. The Testor 1/32 scale Peterbilt includes a pre-painted red die-cast body and a plastic box type trailer. The Testor Peterbilt goes together with screws and some glue while other parts simple snap together, making this kit ideal for the younger modeler.