What is the difference between a kingpin and ball joint?

A kingpin is a pivotal component in a vehicle's steering mechanism, serving as the axis around which the front wheels pivot for steering. In contrast, a ball joint is a flexible connector that allows for movement between parts, such as the suspension and wheel assembly, enabling the wheels to move up and down while also allowing for steering. While both are crucial for vehicle mobility and handling, the kingpin primarily influences steering geometry, while ball joints provide articulation in the suspension system.