F 150 4WD Pickup V8-5.4L CNG VIN M (2001)
6. Install the nut over the top and base stud.
7. Use special tool 303-DO27 (1381L-4201-A) and select the thickest blade that will enter between the tool and the differential clutch pack. Subtract
0.010 inch from the reading to obtain the thickness of the new clutch, shim. A maximum of two shims can be used. Select the correct shim(s) size
and remove special tool M-135 (T80P-4946-A).
8. Place the shim and Belleville s spring on the differential clutch pack.
^
The dished or concave side of the Belleville spring must face up and against the thrust face of the differential case.
