Domestic Series 5000 MFD
54
9.52. Use blue plastigage having a range of .004”-
.009” (.102-.229 mm) to measure the clearance
between the ring gear and the pinion gear.
See Figure 9.52.
•
Position the plastigage so that it compresses
only against one side of the teeth. If it wraps
around one of the teeth, it will give a false read-
ing.
•
The measurement should be taken on the
unloaded side of the gear. If the plastigage is
put on the loaded side of the gear, it will give a
false reading.
9.53. Add or remove shims from beneath the differen-
tial as necessary to obtain backlash of .009”+
.004” (.229 mm + .102mm). Repeat the mea-
surement after each change to confirm the
results. See Figure 9.53.
9.54. After backlash is set, it is necessary to set the
remainder of the end play between the differen-
tial and the left side axle housing.
9.55. Remove the differential set-up plate tool.
9.56. Confirm the presence of the spacer washer
between the left differential bearing and the left
inner axle bearing.
9.57. Add a known quantity of additional shim washers
having an inside diameter of .780” (1.98 cm).
The differential will be intentionally over-
shimmed. See Figure 9.57.
9.58. Position the left inner axle bearing, and install
the left axle through the bearings and shims.
See Figure 9.58.
Figure 9.52
Blue plastigage
Figure 9.53
Plastigage after compression between gears:
compare to measurements on envelope to
determine backlash
Figure 9.57
Left side
differential
bearing
Spacer
and shims
Figure 9.58
Left side
axle shaft
Left side inner
axle bearing
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