1. I think that doing a dynamic 4-wheel alignment is to adjust the toe of the front wheels.

To put it simply, 4-wheel alignment requires considering the alignment of all 4 wheels of the car. Toe-in is an angle concept, technically called toe angle.

In fact, the front wheels not only have toe angles, but also camber angles, caster angles, and kingpin inclination angles. The rear wheels also have toe angles, camber angles, and thrust angles. When doing a 4-wheel alignment, the rear wheel alignment angle is crucial.

2. Choose a cheap shop to do 4-wheel alignment, the problem cannot be solved.

At present, many domestic and foreign wheel alignment manufacturers are competing to occupy the market. There are a wide variety of wheel alignments of varying quality, and manufacturers without patents or technological content are competing to lower their prices.

In fact, the low price is actually due to the low technological content and measurement accuracy of the equipment, which results in the vehicle positioning problem not being fundamentally solved.

3. Car owners do not understand the common sense of 4-wheel alignment and are easily tricked.

Most users have little knowledge of 4-wheel alignment, and basically do not care about the operation when doing wheel alignment for their vehicles, and rarely mention their opinions. Some maintenance personnel will avoid car owners to do 4-wheel alignment, and some maintenance personnel will not do pre-alignment inspection before alignment, and even fail to inform the car owner in time when the half-axle rubber pads and the lower arm hinge joint rubber pads are cracked, causing greater losses to users in the future, repeated alignment and repeated charges.