Symptoms of car ball head needing to be replaced:

1. If the front wheel ball joint of a car is broken, the following symptoms will appear: bumpy road, cluttering; the car is unstable, swinging left and right; the brake deviates; the direction fails;

2. The ball head is easy to break when it is subjected to impact load due to too large clearance. Repair as soon as possible to avoid danger;

3. The outer ball joint refers to the hand pull rod ball joint, and the inner ball joint refers to the steering machine pull rod ball joint. The outer ball and the inner ball are not connected together. They have to work together. The ball head of the steering machine is connected to the sheep horn, and the ball head of the hand pull rod is connected to the parallel rod.