A stub ball half yoke end, also known as a yoke end or a ball joint, is a mechanical component used to connect a tie rod or steering linkage to a steering knuckle in an automotive suspension system. It consists of a spherical ball joint with a threaded stud on one end and a half yoke on the other end. The half yoke is typically made of metal and is designed to fit onto the steering knuckle or other suspension component.

The purpose of the stub ball half yoke end is to provide a flexible and reliable connection between the tie rod or steering linkage and the steering knuckle. The ball joint allows for a range of motion in different directions, allowing the suspension to move up and down, while the half yoke provides a secure and stable connection.

Stub ball half yoke ends are commonly used in automotive suspension systems, including in the tie rod ends, idler arms, and pitman arms. They are designed to withstand the stresses and forces of the suspension system and to operate smoothly and reliably.

It is important to regularly inspect and replace worn or damaged stub ball half yoke ends, as they can affect the handling and stability of the vehicle if they fail. Signs of wear or damage may include looseness or play in the joint, noise or vibration from the suspension, or uneven tire wear.