A steering system using two short tie rods connected to the steering arms and to a long center link. The link is supported on one end on an idler arm and the other end is attached directly to the pitman arm . The arrangement forms a parallelogram shape.
PARALLELOGRAM STEERING LINKAGE
Meaning of PARALLELOGRAM STEERING LINKAGE in English
English dictionary of automotive terms. Английский словарь автомобильных терминов. 2012