Final answer:
Maintaining the alignment and spacing of the axles adds to vehicle stability.
Step-by-step explanation:
Maintaining the alignment and spacing of the axles adds to vehicle stability. When the axles are properly aligned and spaced, it helps distribute the weight of the vehicle evenly, improving stability and reducing the chances of tipping over or losing control. This is especially important for vehicles that carry heavy loads or undergo frequent changes in weight distribution, such as trucks, buses, and trailers.