F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
2. Install the special tool.
11. Rotate the differential case and measure the differential case runout without the ring gear.
^
If runout is less than specification, install a new ring gear and pinion. If runout exceeds specification, the ring gear is true and the concern is
due to either a damaged differential case or differential bearings. Inspect the differential bearings. If the differential bearings are not damaged,
replace both the differential case and the differential bearings.
12. Remove the differential case from the rear axle housing and remove the differential bearings using the special tools.
13. Using the special tool install the new differential bearings on the differential case.
14. Install the differential case. Position the differential case assembly, including the bearing cups and shims in the rear axle housing. Tighten bearing
caps to specifications.
