Under What Circumstances Is a Wheel Alignment Needed?

[MacGage]

Here are the situations where a wheel alignment is necessary: 1. Whenever suspension system components are disassembled or replaced, a wheel alignment must be performed. Examples include replacing shock absorbers, steering ball joints, or removing/installing the subframe. 2. Additionally, if the vehicle exhibits symptoms such as pulling to one side while driving, an off-center steering wheel, uneven tire wear, heavy steering, or failure of the steering wheel to return to center automatically, the first step should be to check whether the wheel alignment is correct. Below is a brief introduction to wheel alignment: 1. Ordinary passenger vehicles have four wheels, with the two front wheels being the steering wheels. These wheels are not randomly installed on the vehicle but have specific fixed installation relationships. The relative positioning between the wheels, steering knuckles (also known as "kingpins"), and axles is referred to as wheel alignment. 2. For front (steering) wheels, alignment includes four main parameters: caster angle, kingpin inclination, camber angle, and toe angle. For rear wheels, alignment consists of camber angle and toe angle. In rear-wheel-drive vehicles, there is an additional critical parameter called the thrust angle. The combination of front and rear wheel alignment is collectively known as four-wheel alignment.