or damage. Replace all defective parts. Pinion mates must
be replaced in sets.
(5) Inspect the drive gear and pinion for worn or
chipped teeth, or damaged attaching-bolt threads. If re-
placement is necessary, replace both the drive gear and drive
pinion as they are available in matched sets only.
(6) Inspect the universal joint flange for cracks, worn
splines, or a pitted, rough, or corroded oil seal contacting
surface. Repair or replace the universal joint flange as
(7) Inspect the drive pinion bearing shim pack for
broken, damaged, or distorted shims. Replace, if necessary,
when you establish the pinion bearing preload.
c. Assembly and lnstallation.
(1) Lubricate all parts with differential lubricant.
Install the differential side gears and thrust washers, the
Figure 19-9. Removing Differential Bearings.
pinion mates and thrust washers, and the pinion mate shaft
retainer cages must not be distorted or cracked. When re-
in the differential case. Aline the hole in the shaft with the
hole in the case. Drive in the lockpin. If new gears and
placing the bearings, always replace the cup and cone in a
washers are used, it will not be necessary to check gear
backlash: close manufacturing tolerances insure a correct
(4) Examine the differential pinion mate shaft, the
pinion mates, the side gears, and the thrust washers for wear
Figure 19-10. Differential Disassembled.