F 450 4WD Super Duty V10-6.8L VIN S (1999)
Wheel Speed Sensor: Service Precautions
4-Wheel Anti-Lock Brake System
Front
NOTE: The front anti-lock brake sensor indicator is integral to the front wheel hub.
Rear
NOTE: The rear anti-lock brake sensor indicator is attached to the differential case. It is necessary to remove the ring gear in order to remove the rear
anti-lock brake sensor indicator.