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DIFFERENTIAL
46-1 9
INSTAL
5-2361 0
" .
-
HANDLE
Fig. 4B-40 Installing Differential Side Bearings
with a clutch plate having external lugs. Assemble original
spacer plate and shim to complete the stack.
4. On plate clutch type having rounded ear lugs, install
car guides over the lugs. The square ear lug type requires no
guides.
5. Install side gears and clutch pack assemblies into case
on the same side from which they were removed. Install
pinions, pinion thrust washers and cross shaft.
6. Check the pinion to side gear backlash as follows:
a. Compress one clutch pack by inserting screwdriver or
wedge between the cross shaft and side gear (Fig. 4B-41).
b. Mount dial indicator with contact button against
tooth of pinion gear. Rotate pinion. Backlash should be ,001
"
to ,006".
c. If backlash is more than .006", add shims between
clutch pack and case. If backlash is less than .00Iv, remove
shims. A .002" shim will change backlash approximately
,001
".
d. Repeat procedure with opposite side gear.
7. Remove cross shaft. Drive pre-load spring into
position between the side gears (Fig. 4B-42).
8. Assemble the cross shaft and lockscrew; torque to 15-
Ib. ft.
INSTALL DIFFERENTIAL CASE AND
ADJUST 'SIDE BEARING PRELOAD
Differential side bearing pre-load is adjusted by changing
the thickness of both the right and left shims by an equal
amount. By changing the thickness of both shims equally, the
Fig. 4B-41 Checking Side Gear to Pinion Gear Backlash
Fig. 4B-42 Compressing Preload Springs
original backlash will be maintained. All differential side
bearing pre-load shims used in production are cast. Shims
used during service repairs of the differential are of a stamped
steel design and are used along with a production type,
nominal thickness, cast shim. Stamped steel service shims
must be used when differential repairs are made that require
changing side bearing pre-load. Service, steel, adjusting shims
are available in thicknesses ranging from ,040" to .100" in
increments of
.002".
1. Before installation of case assembly, make sure that
side bearing surfaces in carrier are clean and free of burrs.
Side bearings must be oiled with gear lube and if same
bearings are being reused, they must have original outer races
in place.
2. Place differential case and bearing assembly in
position in carrier. Use service type adjusting shim totaling
same thickness as original production type adjusting shims
if either new or reused bearings are to be used. Slip left shims
in position at left bearing with steel shim next to bearing, then
place nominal thickness shim for right side in position and
drive steel shim carefully into position between bearing and
cast shim, using a soft hammer (Fig. 4B-43).
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