Mechanical Steering System Diagram - buyautoparts Mechanical Steering System Diagram . The steering system functions to move the automobile's wheels in response to the movement of the steering wheel. The diagram above depicts the basic components of a mechanical steering system. It includes the Pitman arm, idler arm, tie rods and center/drag link. steering column exploded views for ford, gm, dodge Steering Column Exploded Views. There are hundreds of designs and model changes for steering columns over the past 30 years. We have collected and provide over 2150 exploded views for you Free of charge have chosen the most popular vehicles to help you understand your specific design (earlier design views are limited).