Is a 1 cm difference in car wheelbase normal?

[LaLucia]

There are certain variations in vehicle wheelbase measurements. Generally, a difference within 0.5 cm is considered normal, while a 1 cm difference usually requires adjustment. Below are relevant explanations: 1. Impact of unequal wheelbase: Unequal left-right wheelbase indicates non-parallel front and rear axles, which may cause vehicle drifting during driving, accelerated tire wear, additional loads on suspension components, increased driving resistance, and could lead to frame/suspension deformation or even fatigue fractures. 2. Solutions for unequal wheelbase: Dealerships typically need to replace all related components to recalibrate the data, though wheelbase correction is particularly challenging - even full part replacement may not fully restore original specifications. A four-wheel alignment adjustment can be performed, though front wheelbase normally doesn't require adjustment. Typically, chassis correction after accidents requires repositioning of the frame crossmembers for proper adjustment.