Spicer Drive Axles Service Manual - Manual (Page 10)

IMPORTANT: If any gears are to be replaced, they
must be replaced in sets. Inspect thrust washers for
scoring and excessive wear. Replace all worn or
damaged parts.
7. When it is necessary to remove ring gear from
differential case, carefully center punch each rivet
head. Use a 9/16" drill bit and drill through rivet
heads.
See Figure 4.
8
CORRECT PROCEDURE INCORRECT PROCEDURE
DIFFERENTIAL DISASSEMBLY
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8. Next, use a round type punch to drive out the
remaining portion of the rivet.
CAUTION: Always use a soft hammer or H.D.
plastic head hammer to strike punch.
NOTE: Do not use a chisel to remove rivet heads,
damage to differential case may result. See Figure 5.
Differential Disassembly Complete
PINOIN ABOVE CENTER APPLICATIONS
The F155-S and F170-S axle assemblies may be
specified for pinion above center applications, such
as motor homes, buses, or other rear engine chassis
vehicles.
The following modifications to the carrier assemblies
have been made to insure proper lubrication when
axle assembly is mounted with pinion above center.
The F155-S and the F170-S need to have two oil
scoops and an additional oil passage in the pinion
bearing cage, as shown in the illustration to the
right. Mounting screws for the oil scoop must be
cleaned and coated with #271Loctite, or its
equivalent. The 3/8 inch oil scoop mounting bolts
must be tightened to 34-38 Lb-Ft (46-51 N-m)
torque.
See Figure 6.
Case
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Case
Ring Gear
Ring Gear
Oil Scoops