Spicer Tandem Drive Axles Service Manual D__R440, 460, 480, D_R461, 462, 463, 521, 581, 601, 651, 652, 653 - Manual (Page 62)

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Drive Pinion
Disassemble and Overhaul Drive Pinion
The following procedures cover both forward and rear differ-
ential drive carrier assembly.
Note: Dana drive axles may be equipped with either “press-fit”
or “slip-fit” outer pinion bearings. Procedures are con-
tained in this section for assembly of both types.
1. Rear Axle Pinion Yoke: Remove yoke.
2. If pinion nut was not loosened during earlier disas-
sembly, clamp assembly in vise jaws, use brass pads
to prevent damage. Loosen and remove pinion nut
and flat washer. Remove yoke from pinion.
If pinion nut was not loosened during earlier disassembly,
clamp assembly in vise jaws, use brass pads to prevent
damage.
3. Loosen and remove pinion nut and flat washer. Re-
move yoke from pinion using an appropriate tool.
4. Forward and Rear Axle Pinion Bearing Cage:
• Press-fit. Press pinion out of bearing cage and
bearing cone.
• Slip-fit. For pinion with “slip-fit” bearing cone,
the cage, outer bearing and pinion can usually be
disassembled easily without a press. If difficulty
is experienced, use a press.
5. Rear Axle Pinion Oil Seal and Outer Bearing Cone:
Remove oil seal and bearing cone from cage. Discard
oil seal. Remove bearing cups with suitable puller.
6. Remove bearing spacer and spacer washers from
pinion.
7. Remove pilot bearing from pinion using a split-type
puller. Use two procedure steps to remove each bear-
ing.
a. Mount puller vertically to separate the bearing.
This action will force puller halves under bearing
and start moving bearing off pinion.
b. Mount puller horizontally to press pinion out of
bearing.
1 - Press ram
CAUTION
1