Spicer Single Drive Axles Service Manual: Single Reduction & Single Reduction with Differential Lock - Manual (Page 14)

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Differential Carrier
Disassemble Carrier Assembly - (Rear Axles)
Note: For models having the wheel differential lock option or a
carrier thrust bolt follow the steps below. These parts
must be removed first before further removal of the
wheel differential and/or pinion can take place.
Procedure - Remove Wheel Differential - Models with
Wheel Differential Lock
1. For ease of servicing, mount differential carrier in
stand with differential lock facing up.
Note: To remove the pinion assembly, the shift fork, clutch
hand wheel Diff. assembly, must be removed from car-
rier. See instructions below.
2. Remove shift cylinder mounting screws, then lift
shift cylinder, piston and o-ring assembly off carrier
and end of push rod.
1 - Shift cylinder
3. To disassemble shift cylinder for inspection, first
remove or back off actuator switch. The piston and
o-ring assembly can be removed by inserting a pen-
cil-size tool through the cylinder air port.
4. Grasp push rod end and pull it out of the shift fork,
spring and carrier.
Note: When the push rod is disengaged from the shift fork,
the fork and sliding curvic clutch assembly can be
removed from carrier.
Note: Do not disassemble shift fork from the sliding curvic
clutch unless parts replacement is necessary. To disas-
semble, use pin punch to remove spring pin from long
leg of fork. The fork can now be disengaged from the
clutch.
5. Remove the snap ring, then lift fixed curvic clutch off
differential case hub spline. Further disassembly of
carrier is the same for axles without differential lock.
Procedure -
Models with Ring Gear Thrust Bolt
1. Loosen thrust bolt jam nut.
Note: If the carrier model has a ring gear thrust bolt installed,
it must be backed away from the ring gear before you
can remove the wheel differential.
2. Back out thrust bolt from the carrier until the end of
the bolt is flush with the inside of the carrier casting.
This will allow enough clearance between the ring
gear and the carrier pilot web.
1 - Thrust bolt
2 - Jam nut
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