Rear Wheel Speed Sensors

Fig 1: View of Rear Speed Sensors and Backing Plate

Courtesy of GENERAL MOTORS CORP.

Rear wheel speed sensors are installed to the backing plate.

IMPORTANT: Avoid prying or contacting wheel speed sensor rings. Excessive contact may cause damage to one or more teeth.

Wheel speed sensors are not serviceable. The air cap is not adjusted. The front wheel speed sensor ring is pressed onto the drive axle shaft. Rear wheel speed sensor rings are incorporated into the hub drum. The front ring contains 46 equally spaced teeth, and the rear ring contains 34 equally spaced teeth.