What is linkage steering?

Linkage steering is a type of steering system used in automobiles, especially in older vehicles before the advent of power steering. It is a manual steering system that consists of a series of linkages (rods, levers, and joints) that connect the steering wheel to the front wheels.

The linkage steering system is simple in design and operation. When the driver turns the steering wheel, it rotates a shaft called the steering column. The column is connected to a gearbox, which is positioned at the end of the steering column, near the firewall. The gearbox contains a set of gears that convert the rotation of the steering column into lateral movement of the pitman arm.

The pitman arm is a long, flat arm that connects the gearbox to the center link. The center link, also called the drag link or relay rod, is a long rod that runs parallel to the front axle and connects the pitman arm to the idler arm. The idler arm is located on the opposite side of the center link and serves to maintain the alignment of the steering system.

The outer tie rod ends are connected to the spindle assemblies, which hold the front wheels. The tie rod ends are adjustable, allowing the mechanic to align the wheels for proper handling and tire wear.

One of the advantages of linkage steering is its simplicity and reliability. The system is relatively easy to repair or replace, and it is less expensive than other types of steering systems. A downside to the system is that it can be more difficult to turn the vehicle at low speeds or while parking. It also requires more effort on the driver's part, especially on longer trips or when navigating curves on the road.