If your old car or truck seems to have a mind of its own as you drive down the road and the steering wheel chatters with every bump, you may need a new pitman arm.
The pitman arm, also called steering arm, links the steering box at the bottom of the steering wheel shaft to the track rod which is attached at the other end to the idler arm. When the steering wheel is turned left or right, a worm gear at the bottom of the steering shaft turns a set of teeth. That action moves a gear that activates the pitman arm, causing the steering linkage to move the wheels.
The steering arm is part of an older recirculating ball steering system which is still used primarily in some full-size SUVs and trucks as compared with the smoother-handling rack and pinion steering mechanism more commonly used in automobiles.
A properly functioning pitman arm precisely directs the movement of all the other steering links, limits wheel wobble on bumpy surfaces, assures full wheel turning radius and helps to reduce steering wheel vibration.
- Photo Credit antique steering image by John Sfondilias from Fotolia.com
What Does an Abnormal Brain MRI Look Like?
In order to take a picture of a person's brain and obtain certain information about it, the medical community uses a magnetic...
What Is an Idler Arm?
Proper steering control is crucial to driving safety, allowing the driver to maintain accurate control of the vehicle. The idler arm is...
How to Replace the Pitman Arm in a Chevy Truck
There are a few different types of steering out there, and one of the older models is known as recirculating ball steering....
How to Use a Pitman Arm Puller
A pitman arm is the arm attached to the shaft at the bottom of a steering box in a car or truck....
How to Install a Pitman Arm & Idler Arm
Conventional, or parallelogram, steering is different than rack and pinion steering. Rack and pinion steering does not use an idler or pitman...
How to Remove a Stubborn Pitman Arm
The pitman arm on some older vehicles connects the steering box to the steering linkage. This arm is attached to the box...
1995 Chevy Tahoe Worn Pitman Arm Symptoms
The pitman arm on your 1995 Chevy Tahoe is the leading component of its steering system. It is the main connection between...