What is a ball joint?
A ball joint is part of the suspension system. It is a ball connected to rod that connects the steering knuckle to the control arm. It is essentially a pivot that provides a wide-angle of movement for your suspension from the wheel. Some suspensions come with both upper and lower ball joints.
Why replace a ball joint?
Simple; if the ball joint is worn, the angle of pivot will be affected, sometimes to such a degree that it affects your control over manoeuvrability at low speeds. If this is the case, then you don’t want to go to high speeds because you will most probably lose control.
Replacing a Ball joint without a Press
OK, remember I started out with stating there were two types of ball joints? Well, this is how to replace the one that doesn’t like being replaced without a press.
You cant, you need to take the whole control arm assembly out and give it to a professional or find a press.
I told you, you wouldn’t like it.
Now for all the rest
Now check the ball joints
If the joints have any space between them, or the wheel is moving a lot, then you need to replace the joint.