What is generally required for proper front wheel alignment?

Proper front wheel alignment is crucial for maintaining vehicle performance, safety, and tire longevity. Alignment shimming refers to the process of adjusting the positions of various components in the suspension system to achieve the proper angles of wheel alignment, such as camber, caster, and toe angle.

When alignment shimming is performed, it helps ensure that the wheels are positioned as intended relative to the vehicle's frame and to each other. This is vital in preventing uneven tire wear and ensuring that the vehicle tracks straight on the road, which in turn enhances handling and stability.

The other options represent different aspects of vehicle maintenance but do not directly achieve proper front wheel alignment on their own. New tires may be needed if the existing tires are worn and can affect how alignment adjustments are made, but they are not necessary for the alignment itself. Camber adjustment is part of the alignment process but may not always require shimming specifically. Control arm replacement could be needed if the control arms are damaged or worn, but that is a different issue unrelated to periodic alignment adjustments.