Editing Unimog (section)

=== Chassis ===
Like other trucks, but unlike agricultural tractors, the Unimog is a body-on-frame vehicle with short overhangs. The original Unimog was made with a plane ladder frame<ref name="Vogler_2014">{{cite book |author-first=Carl-Heinz |author-last=Vogler |title=Unimog 411: Typengeschichte und Technik |lang=de |publisher=GeraMond-Verlag |place=München |date=2014 |isbn=978-3-86245-605-5}}</ref>{{rp|82}} and a wheelbase of 1720&nbsp;mm. Later, the wheelbase was extended several times to accommodate customer needs. Starting in the mid-1950s, with the introduction of the Unimog 404, the frame received a drop. Originally, this was done to make space for a spare tyre, but soon engineers found out that the new frame would improve the torsion performance, which is why all following Unimog series also received a frame with a drop.<ref name=Vogler_2016 />{{rp|45}} Several mounting brackets, additional cross members and tool boards were offered as factory options for the frame.<ref name=Vogler_2014 />{{rp|79}}