Buick LeSabre 1965 Service Manual page 375

REAR AXLE 6-9
Fig. 6-14—Removing Pinion Nut
2. Install Holder J-8614-01 on
pinion flange by using two 5/16-18
x 2 b o l t s with flat washers.
Remove pinion nut and washer.
See Figure 6-14.
3. Pull pinion flange from pinion
using Puller J-8614-02 in Holder
J-8614-01. To install puller, back
out puller screw, insert puller
through holder, and rotate 1/8
turn. See Figure 6-15.
4. Remove pinion assembly. If
necessary, tap pinion out with
soft hammer, while being careful
to guide pinion with hand to avoid
damage to bearing outer races.
h. Disassemble Pinion
Assembly
1. If rear pinion bearing is to be
r e p l a c e d , remove rear pinion
bearing from pinion shaft using
Remover J-21493 with Holder
J-6407. See Figure 6-16.
HOLDER _
J-8614-01
PULLER
r j
8614
\
\
Fig. 6-15—Removing Pinion Flange
Fig. 6-16—Removing Rear Pinion
Bearing
2. Pry pinion oil seal from car-
rier and remove front pinion
bearing. If this bearing is to be
replaced, drive outer race from
carrier using a drift.
3. If rear pinion bearing is to be
replaced, drive outer race from
carrier using a drift in slots
provided for this purpose.
6-6 ASSEMBLY OF REAR
AXLE ASSEMBLY
a. Install Pinion Bearing
Outer Races in Carrier
1. If rear pinion bearing is to be
replaced, install new outer race
using Installer J-6197 with Driver
Handle J-8092. See Figure 6-17.
2. If front pinion bearing is to be
replaced, install new outer race
using Installer J-7817 with Driver
Handle J-8092. See Figure 6-18.
b. Set Pinion Depth
Ring and pinion gear sets are
matched in a special test machine
which permits adjustment of pin-
ion depth in ring gear until a point
is reached where best operation
Fig. 6-17—Installing Rear Pinion
Bearing Outer Race
and proper tooth contact under
load is obtained. At this point, the
setting of the pinion with refer-
ence to the centerline of the ring
gear is indicated by the machine.
This setting may vary slightly
from the design or "nominal"
setting due to allowable variation
in machining the parts. However,
most production pinions and all
pinions used for service replace-
ment are zero or nominal pinions.
If during repair, a pinion is found
having a plus or minus reading
recorded in thousandths on the
rear face of the pinion, this indi-
cates that the pinion during test-
ing was found to have best tooth
contact at a position varying from
design or nominal depth.
In order to compensate for all of
the allowable machining vari-
ables, a procedure of gauging the
Fig. 6-18—Installing Front Pinion
Bearing Outer Race