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FRONT SUSPENSION
2 - 43
c r e a s e d (i.e., i t w o u l d i n c r e a s e the d i a l i n d i c a t o r
p l u n g e r
o u t w a r d
(" + ") t r a v e l d i s t a n c e ) . T h e
shaft b e a r i n g " p r e l o a d " torque s h i m t h i c k n e s s
does n o t affect t h e depth o f m e s h adjustment.
T h e a r r o w o n the r i n g gear i n d i c a t e s t h e m e t h o d
o f i n c r e a s i n g o r d e c r e a s i n g s h i m t h i c k n e s s a t
t h e a p p l i c a b l e s i d e o f the differential c a s e to i n -
c r e a s e o r d e c r e a s e the r i n g g e a r " b a c k l a s h " a n d
t h e differential b e a r i n g " p r e l o a d " t o r q u e .
C-4171 HANDLE
BEARING
PRELOAD
SHIM PACK
PINION
LOCATING
SHIM PACK
DIFFERENTIAL BEARING
SHIM PACKS
RY660
Fig. 56 Shim Locations
(18) Remove the measurement tools f r o m t h e differ-
e n t i a l housing.
(19)
Remove t h e drive p i n i o n gear shaft n u t ,
washer, (axle) yoke, o i l slinger, and f r o n t bearing.
(20) I n s t a l l the bearing "preload" torque shims t h a t
were removed d u r i n g disassembly (Fig. 56), t h e shaft
front b e a r i n g and t h e o i l slinger on t h e d r i v e p i n i o n
gear shaft.
(21) A p p l y a l i g h t coating o f hypoid gear l u b r i c a n t
on the l i p o f drive p i n i o n gear shaft seal, position i t
over the end of the shaft and i n s t a l l i t i n t h e differ-
e n t i a l housing bore w i t h Seal I n s t a l l a t i o n Tool W-
147 and D r i v e r H a n d l e Tool C-4171 (Fig. 57).
(22) I n s t a l l the d r i v e p i n i o n gear shaft (axle) yoke,
washer, and a replacement n u t on t h e shaft. T i g h t e n
the n u t w i t h 271 t o 298 N*m (200 t o 220 ft-lbs)
torque.
(23) Use a Newton-meter or a n i n c h pound torque
wrench (Fig. 55) to rotate the drive p i n i o n gear shaft
and observe the indicated bearing " p r e l o a d " torque.
The torque necessary to rotate the d r i v e p i n i o n gear
shaft should be between 2 to 5 N
#
m (20 t o 40 in-lbs)
PINION SEAL
INSTALLER
RY659A
Fig. 57 Drive Pinion Gear Shaft Seal Installation
w i t h replacement bearings. T h e torque necessary t o
rotate t h e drive p i n i o n gear shaft should be between
1 to 3 N»m (10 t o 20 in-lbs) w i t h o r i g i n a l bearings.
I f the d r i v e p i n i o n g e a r shaft b e a r i n g
" p r e -
l o a d " torque i s n o t w i t h i n t h e specified toler-
ance, c o r r e c t the s h i m t h i c k n e s s a c c o r d i n g l y . T o
i n c r e a s e the " p r e l o a d " torque, d e c r e a s e the s h i m
t h i c k n e s s ; to decrease the " p r e l o a d " torque, i n -
c r e a s e t h e s h i m t h i c k n e s s . S h i m s a r e a v a i l a b l e
i n the following t h i c k n e s s e s : 0.003, 0.005, 0.010,
a n d 0.030 i n c h (0.076, 0.127, 0.254, a n d 0.762 mm).
DRIVE PINION GEAR DEPTH
MEASUREMENT
AND ADJUSTMENT
WITH TOOL SET C-3715-B
The following drive p i n i o n gear depth (i.e., t h e
depth o f t h e gear teeth mesh between the drive p i n -
ion gear and t h e r i n g gear) alternate measurement
and adjustment procedure involves u s i n g A x l e Mea-
surement Gauge Tool Set C-3715-B. Tool Set C-3715-
B is also used t o i n s t a l l t h e drive p i n i o n gear shaft
bearing cups.
(1) Position each drive p i n i o n gear shaft b e a r i n g
cup i n the applicable differential housing bore.
(2) Begin assembling Tool Set C-3715-B b y posi-
t i o n i n g D r i v e P i n i o n Gear Shaft Locating Spacer
Tool SP-5586 over t h e p r i m a r y body o f Screw Tool
5385.
(3) Position the drive p i n i o n gear shaft rear (inner)
bearing on the tool screw a n d i n s e r t t h e tool screw
( w i t h t h e bearing) i n t o and t h r o u g h t h e differential
housing bore.
(4) Position Shaft Locating Sleeve Tool SP-5585
and the drive p i n i o n gear shaft f r o n t (outer) bearing
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