Through the 2nd World War, the German Army used a large number of 3 tons medium trucks to perform tactical transport and logistics duties. The difficult working conditions, provide on many fronts, made the standard vehicles unsuitable for off road purposes. Due to the fact that only halftracks could actually run in these conditions, a large amounts of trucks has been transformed by detatching their back axles and putting new driveshafts considering songs. The Maultier SdKfz 3a halftrack had been made in line with the popular Opel Blitz whilst the Maultier SdKfz 3b utilized the Ford V3000S vehicle chassis manufactured in the Cologne manufacturing plant until 1941. The extreme flexibility of the half-tracks Maultier made them well suited for the use of gun systems for instance the Flak 38 20mm.
