Should I replace the control arm or just the ball joint?
There are several reasons why a control arm needs to be replaced. The most common reason is when a ball joint wears out, and it cannot be replaced separately. A worn-out ball joint can pop out causing the vehicle to lose control while driving. This means that a vehicle with a worn-out ball joint is unsafe to drive.
Are control arms easy to replace?
Control arm replacement can be difficult—especially if the vehicle’s suspension is rusted and corroded. Separating the ball joint from the steering knuckle can be tricky, too, if you’ve never done the job before. And, oh yeah, you’ll want to get your car’s alignment checked after replacing the control arm.
When do the control arms need to be replaced?
Another reason to replace a control arm is when it has been damaged or bent after hitting a pothole or curb. The choice of whether to replace only a ball joint or bushings or the entire control arm often depends on the price, the overall condition of the arm and part availability. What is more cost-effective?
What should I do if my control arm fails?
Cheap knock-off control arms, ball joints and other suspension components are known to fail prematurely. After a control arm is replaced, in most cases, the wheel alignment needs to be performed to bring the steering and suspension angles back to within the specifications.
How does the control arm work on a car?
The bushings provide pivot points, allowing the control arm to swing up and down as the vehicle drives over bumps. The outer end of the control arm connects through a ball joint to the steering knuckle, the part that carries the front wheel. A stabilizer (sway) bar connected to both lower control arms or struts keeps the car stable in turns.
What’s the difference between upper and lower control arms?
Both the lower and upper control arms have a ball joint, although the upper ball joint is often smaller. As the wheel drives over a bump, both arms swing up and down on rubber bushings following the wheel.