Specifications

Removal and Disassembly
26 MAINTENANCE MANUAL
Removal Ring Gear from the Differen-
tial Case
NOTE:
If ring gear needs replaced use the follow-
ing procedure:
1. For 145 and 160 Series axles, remove the
capscrews, washers and nuts that fasten the
ring gear from the differential case.
CAUTION
DO NOT REMOVE THE RIVETS OR THE RIV-
ET HEADS WITH A CHISEL AND HAMMER. A
CHISEL AND HAMMER CAN DAMAGE THE
DIFFERENTIAL CASE.
2. For 140 Series axles, remove the rivets that
fasten the ring gear to the differential case.
A. Carefully center-punch each rivet head in the
center on the ring gear side of the assembly.
B. Drill each rivet head on the ring gear side of
the assembly to a depth equal to the thick-
ness of one rivet head. Use a drill bit that is
0.0312-inch (0.8000 mm) smaller than the
body diameter of the rivets. Figure 3.49.
C. Press the rivets through the holes in the ring
gear and the differential case. Press on the
drilled rivet head.
3. Place the ring gear and case assembly on
a press so that the teeth of the gear are to-
ward you. Place supports under the gear.
4. Placeasleeveoraatmetalplateontop
of the case. Press the main differential case
from the ring gear. Figure 3.50.
Removal Drive Pinion Assembly
NOTE:
Inspect the hypoid ring gear set for damage. If
it is not damaged, you can reuse the ring gear
set at reassembly. Measure and record the
gear set backlash. Figure 3.17. See section 3.
Figure 3.49
Figure 3.50
Figure 3.51
PRESS
PLATE
1 - NUT
2 - WASHER
3 - OUTER BEARING CONE
4 - OUTER BEARING CUP
5 - OUTER SPACER
6 - HELICAL DRIVEN GEAR
7 - INNER SPACER
8 - SHIMS
9 - INNER BEARING CUP
10 - INNER BEARING CONE
11 - DRIVE PINION
DRILLING RIVET
FROMHEAD