Atek World Idler Arms Auto Parts
The Idler Arm is used on an independent front suspension to get the steering geometry to match up with the suspension geometry. It’s like a dummy pitman arm on the opposite side of the truck to provide pivoting support to the Steering Linkage. Usually, there is a link from the pitman arm to the Idler Arm then two smaller links dropping down off that link to the steering knuckles, in absence of an Idler Arm setup on an independent front suspension; it would cause the tires to toe in and out as the suspension cycles.
The Idler Arm consists of a bracket, an arm that connects the bracket to the centre link of the steering linkage, and an internal pivot bearing. Some vehicles also use two Idler Arms
Both the Idler Arm and the Pitman Arm are used on light trucks and rear wheel drive vehicles, with conventional suspension systems, and parallelogram steering.
Together, an Idler Arm and Pitman Arm rotate in unison while keeping the center link parallel to the ground. An Idler Arm works with the pitman arm and steering box. Its purpose is to keep the center link traveling in a smooth arc in the act of steering.
Defective and worn Idler Arm, result in tire edge wear, loose or erratic steering, and wandering of the tires and vehicle. When Idler Arm is worn steering wheel will move by few inches or more from side to side without turning the wheels at all or would will staggering to the left or right when you go over a bump.