F 250 4WD Super Duty V8-7.3L DSL Turbo VIN F (2001)
18. Using the special tool, remove the differential pinion bearing.
19. NOTE: Discard the drive pinion position shim if bent or nicked. Measure and record the shim thickness if discarding the shim.
Remove the drive pinion position shim.
20. Carry out the following inspection.
CAUTION: Always use new solvent when cleaning the bearings.
CAUTION: Do not spin dry the bearings with compressed air.
CAUTION: Oil the bearings immediately, to prevent rusting.
Thoroughly clean all parts, including the differential housing and inside of the differential case.
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Inspect all parts for damage.
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Discard the complete differential if excessive wear is visible on all parts.
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Discard both differential pinion gears and both differential side gears if any one of these gears are worn/damaged.
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Inspect the flange lugs for damage. The end of the flange that contacts the bearing cone as well as the nut counterbore and the seal contact
area must be smooth and free of nicks.
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Verify that the differential and pinion bearing bores are smooth. Remove any nicks/burrs from the mounting surfaces of the differential
housing.
Assembly
1. NOTE: To ease installation, coat the seal axle tube mating surfaces with SAE 80W-90 Premium Rear Axle Lubricant XY-80W90-QL or
equivalent meeting Ford specification WSP-M2C197-A.
Using the special tools, install the axle shaft oil seals.
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For model 50 axles, use special tools 205-428, 205-425 (LH), and 205-424 (RH) to install the axle shaft oil seals.
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For model 60 axles, use special tools 205-428, 205-427 (LH), and 205-426 (RH) to install the axle shaft oil seals.
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Place the axle shaft oil seals onto the tool, and position the assembly into the differential housing. Lengthen the tool as necessary until both
seals start evenly in the axle tubes. Continue to lengthen the tool until both step plates bottom out against the housing.
