Buick LeSabre 1965 Service Manual page 394

6-28
REAR AXLE, 4 6 , 4 8 , 4 9 0 0 0 SERIES
Install rear drums and wheels.
Torque lug nuts to 70 ft. lbs.
4. Connect rear universal joint
to p i n i o n flange according to
alignment marks. C o m p r e s s
bearings using a C- clamp so that
bearing snap rings will engage
pinion flange without gouging. See
Figure 6-113. (On Riviera, con-
nect flanged ball stud yoke and
rear pinion flange according to
alignment marks.)
5. Torque U-bolt nuts to 13 ft.
lbs. using an extension such as
J-9113. See Figure 6-114. (On
Riviera torque 4 pinion flange
bolts to 75-95 ft. lbs.).
6. With car approximately level,
fill rear axle housing to filler
plug h o l e u s i n g s p e c i f i e d
lubricant.
6 - 1 6 DISASSEMBLY OF
CARRIER ASSEMBLY
a. Removal and Disassembly of
Ring Gear and Case
Assembly
1. P l a c e carrier assembly in
suitable mounting fixture such as
Fixture J-6177.
2. It is advisable to check the
existing gear lash with a dial in-
dicator as described in paragraph
6-17, e. This will indicate gear or
bearing wear or an error in back-
lash or preload setting which will
help in determining cause of axle
noise. It will also enable used
gears to be reinstalled at original
lash setting to avoid changing
gear tooth contact.
3. Remove differential bearing
pedestal clamp bolts and open
pedestals by tapping a wedge in
each pedestal slot.
CAUTION: Do not use excessive
force on wedges as pedestal bores
may be permanently distorted.
4. Pull differential bearing sup-
ports with Puller J-9744-1 using
the following procedure:
(a) Using a screwdriver, turn ex-
Fig. 6-54— Installing Support Puller
panding screw in puller body
J-9744-5 in a counterclockwise
direction to retract pins; then in-
sert puller body into differential
bearing support until reference
line on tool is flush with end of
support and punch mark is in
general direction of hole in sup-
port. See Figure 6-54.
(b) Expand pins a slight amount
by turning expanding screw with
screwdriver in a clockwise di-
rection until a light drag on pins
is felt, then move tool as required
to engage pins with holes in sup-
port. Fully expand pins.
(c) Place bridge J-9744-2 over
puller complete with draw bolt,
thrust bearing, and washer as
shown in Figure 6-55. With a
suitable wrench tighten bolt to
withdraw bearing support.
5. Install Spreader J-6185 shown
in Figure 6-79. Tighten spreader
bolt just enough to free case
assembly.
CAUTION: Do not spread pedes-
tals any farther than necessary
or they may be permanently
sprung.
Lift case straight out until side
bearings are half-way clear of
pedestals. Then take hold at bear-
ings with both hands to prevent
bearings from dropping and lift
case assembly out. Keep right
and left bearings, shims, and sup-
ports in sets so that they may be
reinstalled in the same positions.
Remove spreader tool.
6. Mark ring gear and case, so
they may be reassembled in same
relative position. Remove ring
gear from case. If ring gear is
tight, tap it off using a soft ham-
mer; do not pry between ring gear
and case.
7. Drive differential pinion axle
spring pin and pinion axle from
case. Mark side gears, pinions,
and washers so they may be rein-
stalled in same sides. Remove
side gears, pinions, and washers.
DRAW BOLT
PULLER
JAWS
Fig. 6-55—Removing Differential
Support Bearing
Fig. 6-56—Proper Position of
J-6552 Parts