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FRONT SUSPENSION
2 - 39
AXLE
PINION
MODEL
SETTING
Fig. 46 Shim Locations
p i n i o n g e a r w o u l d r e q u i r e 0.003 i n c h (0.08 m m )
less i n s h i m t h i c k n e s s t h a n a d e p t h v a r i a n c e o f
" 0 " (i.e., o n e c o m p l e t e s h i m " p a c k " m i n u s 0.003
i n c h o r 0.08 m m ) ;
• b y r e d u c i n g t h e t h i c k n e s s o f t h e s h i m s 0.003
i n c h (0.08 m m ) , t h e d e p t h p o s i t i o n o f t h e d r i v e
p i n i o n g e a r w i l l b e d e c r e a s e d f r o m 2.628 i n c h e s
(66.76 m m ) t o t h e s t a n d a r d d e p t h o f 2.625 i n c h e s
(66.68 m m ) ; o r
• i f t h e d e p t h v a r i a n c e i s " - 3 " (m-8), t h e d r i v e
p i n i o n g e a r w o u l d r e q u i r e 0.003 i n c h (0.08 m m )
m o r e i n s h i m t h i c k n e s s t h a n a d e p t h v a r i a n c e o f
" 0 " (i.e., o n e c o m p l e t e
s h i m " p a c k " p l u s 0.003
i n c h o r 0.08 m m ) ;
• b y i n c r e a s i n g t h e t h i c k n e s s o f t h e s h i m s 0.003
i n c h (0.08 m m ) , t h e d e p t h p o s i t i o n o f t h e d r i v e
p i n i o n g e a r w i l l b e i n c r e a s e d f r o m 2.622 i n c h e s
(66.60 m m ) t o t h e s t a n d a r d d e p t h o f 2.625 i n c h e s
(66.68 m m ) .
I f t h e o r i g i n a l drive p i n i o n gear shaft a n d r i n g
gear set w i l l be installed b u t t h e depth shims must
be replaced, measure t h e thickness of the o r i g i n a l
depth shims a n d " b u i l d " a replacement
" p a c k " of
depth shims w i t h the same thickness.
I f e q u i p p e d , t h e o i l s l i n g e r l o c a t e d b e t w e e n t h e
r e a r b e a r i n g a n d t h e t h r u s t f a c e o f d r i v e p i n i o n
g e a r m u s t b e m e a s u r e d
a n d t h e t h i c k n e s s i n -
c l u d e d w i t h t h e t o t a l s h i m " p a c k " t h i c k n e s s .
I f the o r i g i n a l drive pinion/ring gear set is n o t re-
usable, the depth s h i m thickness for the replacement
drive p i n i o n gear m u s t be determined before i n s t a l l -
i n g the differential case i n t h e housing.
I f a replacement gear set i s being installed, note
t h e depth variance etched i n t o b o t h the o r i g i n a l and
the replacement
drive p i n i o n gear, a n d a l t e r t h e
thickness o f the o r i g i n a l depth shims to compensate
for the difference i n the depth variances. Refer t o the
D r i v e P i n i o n Gear D e p t h Variance chart.
F o r
E x a m p l e :
• i f t h e o r i g i n a l d r i v e p i n i o n g e a r h a s a d e p t h
v a r i a n c e
o f " 4 - 2 " ( m + 5) a n d t h e r e p l a c e m e n t
d r i v e p i n i o n g e a r h a s a d e p t h v a r i a n c e o f " - 2 "
(m-5), a d d 0.004-inch (0.10-mm) t h i c k n e s s t o t h e
o r i g i n a l d e p t h s h i m s .
I n d i v i d u a l depth shims are available i n 0.003-inch,
0.005-inch,
0.010-inch,
a n d 0.030-inch
(0.08-mm,
0.13-mm, 0.25-mm, and 0.76-mm) thicknesses.
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