sentences:  While the M35 was designed to act as the prime mover for the M55 Quadmount system, which included a towed trailer, the M45 mount was often removed or the wheels removed from the trailer, and the system mounted on the bed of the truck.The M55 system was also mounted on the M54 truck.More simplified armoring projects were conducted as well, adding armored walls of various thicknesses to standard cargo variants.