F 550 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
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Take frequent pinion bearing torque preload readings.
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If installing new differential pinion bearings, tighten the pinion nut to specifications.
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If installing the original pinion bearings, the final reading must be 0.56 Nm (5 inch lbs.) more than the initial reading taken during
disassembly.
24. Position the differential case with the special tool into the differential housing.
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For model 50 axles, use special tool 205-DO46.
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For model 60 axles, use special tool 205-D047.
25. NOTE: Repeat this step until there is a consistent reading.
Determine the total thickness of differential bearing shims to install under the differential bearing on the ring gear side of the differential case.
Record this measurement, as the shim thickness required for the ring gear side of the differential case.
1
Position the special tool.
2
Position the special tool.
3
Force the ring gear into mesh with the pinion.
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Rock the ring gear to allow the teeth of the gears to mesh.
4
With the pressure still applied, zero the special tool.
5
Force the ring gear away from the pinion.
6
Record the reading.
