Through the second World War, the German Army used many 3 tons moderate cars to accomplish tactical transport and logistics duties. The hard operating conditions, offer on numerous fronts, made the original vehicles unsuitable for off road purposes. Because only halftracks could operate in these conditions, a big amounts of trucks is converted by detatching their rear axles and putting brand new driveshafts based on songs. The Maultier SdKfz 3a halftrack ended up being made based on the popular Opel Blitz due to the fact Maultier SdKfz 3b utilized the Ford V3000S truck framework manufactured in the Cologne manufacturing plant until 1941. The extreme freedom of the half-tracks Maultier made them perfect for the usage of weapon systems like the Flak 38 20mm.