Chevrolet 10 series 1973, Overhaul Manual

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4 - 6 6 REAR AXLE D IF FERENTIA L CARRIER
2. Inspect ring gear pilot case flange and back of ring
gear for dirt or burrs.
3. Install two guide pins (made from cap screws with
heads cut off and ends slotted) to new gear
diametrically opposite each other.
4. Start guide pins through case flange and tap ring
gear on case.
Differential Bearing Replacement
1. Install Tool J-8107 making sure puller legs are fitted
securely in notches in case and tighten retaining
yoke as shown in Figure 7G.
2. Tighten puller screw to remove bearing.
3. Place new bearing on hub with thick side of inner
race toward case and install bearing using J-1488 as
shown in Figure 8G.
NOTE: The side bearing tool is counterbored
Fig. 8G—D iffe re n tia l B earing In s ta lla tio n
and has pilot to assure proper installation
and seating of bearing.
Differential Reassembly
1. Lubricate differential side gears, pinions and thrust
washers.
2. Place differential pinions and thrust washers on
spider.
3. Assemble side gears and pinions and thrust washers
to left half of differential case.
4. Assemble right half of case to left half being sure
to line up marks on the two halves.
5. Install differential-to-ring gear bolts and lock
washers and tighten evenly until ring gear is flush
with case flange.
6. Remove two guide pins and install remaining two
bolts. Torque all bolts alternately and evenly to
specifications.
Reassembly
1. Place new pinion bearing retainer gasket on the
retainer and install pinion assembly in carrier.
NOTE: The pinion assembly should be
pressed into the carrier to prevent the
possibility of damaging the shims.
2. Install pinion bearing retainer bolts and lock
washers and torque bolts to specifications.
3. Lubricate differential bearing rollers with engine oil
and place outer races over them.
4. Install differential assembly in carrier and install
adjusting nuts.
CAUTION:
Carefully slide adjusting nuts
alongside the bearings so that threads on nuts
fit into threads in carrier.
5. Install differential bearing caps making sure the
marks on the caps line up with the marks on the
carrier.
6. Install bearing cap bolts and lock washers and
tighten until lock washers just flatten out.
Backlash and Preload Adjustment
1. With differential bearing cap bolts loosened just
enough to permit turning the bearing adjustment
nuts with Tool J-0972, remove all lash between ring
gear and pinion. See Figure 9G.
2. Back off left hand adjusting nut one to two notches
to a locking position.
3. Tighten right hand adjusting nut firmly to force
differential in solid contact with left hand adjusting
nut.
4. Back off right hand adjusting nut until free of
bearing; then retighten snugly against bearing.
5. Tighten right hand nut from one to two additional
notches to a locking position.
Fig. 7G—D iffe re n tia l Bearing Removal
OVERHAUL MANUAL