The types of different suspension ball joints are different. The MacPherson independent suspension only has a steering ball head and a lower support ball head. And the multi-link suspension is more. The ball head of the upper and lower control arm support arm can be felt through the steering direction. The steering wheel’s freedom is generally within 15 degrees. When steering the ball joint, you can feel the steering tie rod east and the horn does not move, which means that the steering ball joint is worn out and needs to be replaced. The ball joint supporting the ball joint and the control arm needs to be lifted to keep the wheels off the ground. Drag the tires up and down to feel whether there is openness. The ability of the tires to move up and down easily means that the ball head is open and needs to be replaced. The specific wear and tear depends on the corresponding ball head moving position. No matter what the ball head is severely worn, you can feel the jitter of the wheels at low speeds, the damage of the steering insensitive ball head, and the cause of oil loss and rust. Generally, you can see that the rubber sleeve of the ball head is damaged, there is oil leakage, the steering is rigid, and the ball head is broken if it shakes by pulling it with your hand. Ball head ball cage noise, activity, most of it is broken, just change one.



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