Long Arm Track Rod Ball Joint – the ball joint at the long end of the steering track rod.

It forms the outer part of the lower steering tie rod arrangement, giving the pivoting connection that allows angular movement as the wheels turn and the suspension articulates, while transmitting steering input along the linkage. The long-arm configuration is used where a longer reach from the rack is required.

A worn joint produces steering looseness, knocking from the front end and uneven tyre wear. Have the wheel alignment checked after fitting.