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(193)
REAR AXLE ASSEMBLY
REPAIRS
5-23
should be within .001" plus or minus, of re-
quired micrometer reading.
5-23 INSTALLATION OF DIFFERENTIAL
RING GEAR AND CASE ASSEMBLY
1.
Before installation of ring gear and case
assembly make sure that differential bearing
seats in carrier pedestals and caps are clean
and free of burrs. Remove any burrs which
might prevent bearings or bearing caps from
seating properly.
2. Place outer races on differential bearings
but do not oil bearings as this would interfere
with bearing adjustment. Install gear and case
assembly incarrier and slide bearing adjusters
into position so that threads are engaged in
threads in carrier pedestal.
3.
Install bearing caps with bolts and lock
washers. Make sure that caps are installed in
original positions as marked betore removal.
Turn bearing adjusters to engage threads in
caps. Tighten cap bolts to 20 ft. lbs. torque then
loosen all four bolts 1
,4
turn.
Figure 5-29-Adjusting Differential Bearings with Wrench
J
1365
4. Using Adjuster Wrench
J
1365 (fig. 5-29)
turn adjusters as required to set ring gear lash
at
approximately
.008" t
o
.012" , with both ad-
justers in firm contact with
bearings.
CAU-
TION: Do not use punch and hammer to turn
adjusters as adjusters will be distorted (see
fig. 5-30) and proper bearing adjustment can-
not be obtained.
5. Back off one adjuster (preferably left)
while observing bearing rollers and outer race,
until rollers and race just stop turning, then
tighten adjuster 4 to 5 notches to properly seat
bearings and adj usters.
6. Slowly back off adjuster until bearing
outer race just stops turning. Recheck for this
Figure 5-30-Adjuster Mutilated by Wrong Tool
"free position" at least once to make sure of
proper position.
7. From the
"free
Position" tighten the
adjuster
2%
to 3 notches to
pre-load
the bear-
ings, then tighten all 4 bearing cap bolts to
65-70 ft. lbs. torque.
8. Mount dial indicator as shown in figure
5-31.
Use a small button on indicator stem so
that contact can be made off the edge of tooth.
Set dial indicator so that indicator stem is as
nearly in line with gear rotation as possible.
If stem bears against edge of tooth, or stem is
at considerable angle to the line of gear rota-
tion, a false indication of backlash will be
obtained.
Figure 5-31-Checking Backlash with Dial Indicator
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