Dodge D150 1990 Service Manual page 169

3 - 1 8 REAR AXLES
Fig. 16 Ring Gear "Runout" Measurement
T h e m a x i m u m " r u n o u t " m a r k o n t h e d i f f e r e n -
t i a l case w i l l b e v e r y u s e f u l l a t e r d u r i n g t h e dif-
f e r e n t i a l case flange " r u n o u t " m e a s u r e m e n t
( b e l o w ) .
(12) M a r k the differential housing and the differen-
t i a l bearing caps for i n s t a l l a t i o n reference (Fig. 17).
Fig. 17 Housing & Caps Marked For Installation
Reference
(13) Remove t h e differential bearing threaded ad-
juster " l o c k " from each bearing cap. Loosen, b u t do
not remove the bearing caps.
(14) Insert Tool C-4164 t h r o u g h each axle shaft
tube and i n t o the threaded adjuster hex-shaped drive
hole (Fig. 18). Loosen t h e threaded adjusters w i t h the
tool.
(15) R e t a i n the differential case i n place and, w i t h
e x t r e m e c a u t i o n , remove t h e differential bearing
caps (Fig. 19), the threaded adjusters and the differ-
ential case.
T h e d i f f e r e n t i a l b e a r i n g c u p a n d t h e t h r e a d e d
a d j u s t e r m u s t b e r e t a i n e d w i t h t h e i r r e s p e c t i v e
b e a r i n g as a " m a t c h e d s e t " .
•
Fig. 18 Tool C-4164 In Axle Shaft Tube
BEARING
CUP
BEARING DIFFERENTIAL
CAP CASE J9003-86
Fig. 19 Differential Bearing Cap Removed
(16) Use a Newton-meter or a n inch-pound torque
wrench t o measure the drive p i n i o n gear shaft bear-
i n g " p r e l o a d " torque. Rotate t h e drive p i n i o n gear
shaft (axle) yoke n u t slowly w i t h the torque w r e n c h
and record t h e m a x i m u m torque. Remove t h e d r i v e
p i n i o n gear shaft n u t and washer. Use Tool C-452
and H o l d i n g Tool C-3281 to remove the drive p i n i o n
gear shaft (axle) yoke (Fig. 20).
(17) Use a s m a l l pry bar and a h a m m e r to remove
t h e drive p i n i o n gear shaft seal from the differential
housing bore and discard i t .
(18) Force the drive p i n i o n gear shaft r e a r w a r d and
out of t h e f r o n t bearing t o remove the shaft a n d t h e
front b e a r i n g f r o m the differential housing. T h i s w i l l
r e s u l t i n d a m a g e t o t h e f r o n t b e a r i n g r o l l e r s a n d
t h e b e a r i n g c u p , t h e r e f o r e , b o t h t h e f r o n t b e a r -
i n g a n d t h e c u p m u s t b e r e p l a c e d . Discard t h e
bearing " p r e l o a d " torque collapsible spacer.