Control arm
A hinged metal link that holds a wheel to the car's frame and lets it move up and down.
In plain English
A control arm is a sturdy metal link that connects the wheel assembly to the car's frame. It pivots on rubber bushings at one end and usually a ball joint at the other, which lets the wheel travel up and down over bumps while staying in position.
Why it's on your estimate
The rubber bushings crack and the ball joint loosens with age. Signs include clunking over bumps, wandering steering, and uneven tire wear. Many shops replace the whole arm because the bushings and joint come already fitted.
How urgent is it?
Fix soon
Worn bushings are mostly a noise and tire-wear problem at first. A badly worn ball joint is more serious, because if it separates the wheel can fold out of position.
Questions to ask the shop
- Is it the bushings, the ball joint, or both?
- Will the car need a wheel alignment afterward?
Got a long estimate full of terms? A free browser AI like HARPA AI can read the page and explain each line in plain English.