Abstract: An apparatus includes having a pair of spaced-apart right and left misalignment sensors which are adapted to be positioned on opposite sides of the wheel under test, and an electrical circuit for producing electrical signals when misalignments are sensed and for supplying them to a pair of visible light-emitting indicating devices which, in turn, provide visually discernible misalignment indicating information in response to the electrical signals. The method for detecting and indicating wheel misalignments includes the steps of placing the wheel between two spaced-apart oppositely-disposed misalignment sensors, rotating the wheel about its axis, producing electrical signals in response to the sensors detecting wheel misalignments, and observing indicating devices which respond to the electrical signals when the sensors detect misalignments of the wheel.