Driven Sprocket: Check

Check the bearing race to verify that it has not moved out of position or become scored. If worn or scored, a new driven sprocket will need to be installed.
Inspect the sensor wheel for bent or damaged tabs.

Fig 1: Checking Bearing Race To Verify That It Has Not Moved Out Of Position Or Become Scored
Courtesy of FORD MOTOR CO.

NOTE: A new speed sensor wheel will need to be installed if the old one is damaged.

Fig 2: Removing Speed Sensor Wheel

Courtesy of FORD MOTOR CO.

Remove the speed sensor wheel.
Using the special tools, install a new speed sensor ring.

Fig 3: Installing Speed Sensor Ring Using Special Tools
Courtesy of FORD MOTOR CO.