1. Check the housing
Although the housing is not a shock absorbing component of the shock absorber, it is conformable for the support member, so it is important. The strength of the housing of the car damper must reach the specified requirements. We can make a simple judgment from the thickness, so we can't just cost the price when we purchase. Because some manufacturers may use a thin housing for reducing costs. This automotive shock absorber service life will be shorter.
2. Check the spring
The spring is the main shock absorbing member. When we are purchasing, you can start checking from both ends. A spring without a tight grain is affecting the stability of the damper. Another important indicator is the amount of compression of the spring. A sufficient compression can ensure that the sponsors are low enough to achieve the damping effect.
3. Check surface treatment
The workmanship of a good quality car shock absorber must be good. We can see if the workmanship is fine, such as whether the welding is smooth, whether the paint is peeled off.