The Rack End, also known as the inner tie rod or axial Ball Joints, is a part of the steering system in a car, which connects the outer tie rod to the steering gear. The Rack End contains a ball and socket joint that allows the tie rod to transmit the force from the steering rack to the steering arm and move the wheel. This small but mighty part plays a crucial role in ensuring that a vehicle can be steered smoothly and accurately, making it an essential component of any modern automobile.