Buick LeSabre 1965 Service Manual page 406

6-40
REAR AXLE, 4 6 , 4 8 , 4 9 0 0 0 SERIES
3. Apply Special Positive Trac-
tion L u b r i c a n t to the clutch
plates.
4. Assemble the clutch packs as
follows:
a. Alternately position nine clutch
plates on the side gear, starting
and ending with a clutch plate
with the external lugs.
b. Install the two clutch guides
over the clutch plate lugs.
c. Install the same shims which
were removed or an equal amount
on the clutch plate.
d. Repeat Steps a, b, and c on the
other clutch pack.
5. Check the pinion to side gear
clearance as follows:
a. I n s t a l l one side gear with
clutch pack and shims in the case.
b. Position the two pinion gears
and thrust washers on the side
gear and install the pinion shaft.
c. Compress the clutch stack by
inserting a screwdriver or wedge
between the side gear and the
pinion shaft.
d. Install dial indicator with the
contact button against the pinion
gear. See Figure 6-85.
e. Rotate pinion gear. Clearance
should be .001" to .006".
f. If c l e a r a n c e is more than
.006", add shims between clutch
pack and case. If clearance is
less than .001", remove shims.
A .002" shim will change clear-
ance approximately .001". Re-
check clearance after adding or
subtracting shims.
g. Remove side gear and repeat
procedure with opposite clutch
pack, on opposite side of case.
6. Remove pinion shaft, pinions
and thrust washers.
7. Install the remaining side gear
and clutch pack with c o r r e c t
shims in the case.
PINION SHAFT
PINION GEAR
i
DIAL
INDICATOR
SET J-8001
Ml
1 1
TO .006
11
BACKLASH
Figure 6-85—Checking Side Gear to Pinion Backlash
FLAT WASHER
TWO
C-CLAMP
Figure 6-86—Compressing Preload Springs