F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
13. Install the differential pinion shaft and install a new differential pinion shaft lock bolt finger-tight.
14. Using the special tool, install the differential bearing on the differential case. Repeat for the other side.
15. CAUTION: Make sure that the notches on the case flange and the anti-lock speed sensor ring are aligned.
Press the new anti-lock speed sensor ring and the ring gear on the differential case.
16. NOTE: Apply stud and bearing mount to the ring gear bolts.
Install the ring gear bolts.