Dodge D150 1990 Service Manual page 175

3 - 24 REAR AXLES •
Fig. 32 Drive Pinion Gear Shaft (Axle) Yoke
Installation
JAUTION: During installation of the drive pinion
[ear shaft (axle) yoke and "seating" the front bear-
rig, use care to prevent collapsing the "preload"
orque spacer.
(25) Remove t h e (axle) yoke a n d t h e tools f r o m t h e
rive p i n i o n gear shaft.
(26) I n s t a l l t h e drive p i n i o n gear shaft seal:
for 8 3/8-inch diameter r i n g gear axles, use I n s t a l -
i t i o n Tool C-4076; a n d
for 9 1/4-inch diameter r i n g gear axles, use I n s t a l -
i t i o n Tool C-3980 or C-4109.
(27) T h e seal is correctly i n s t a l l e d w h e n t h e seal
ange contacts t h e face o f t h e differential housing
ange ( F i g . 33).
Fig. 33 Drive Pinion Gear Shaft Seal Installation
T h e o u t e r p e r i m e t e r o f t h e s e a l i s p r e - c o a t e d
i t h a s p e c i a l sealant, t h e r e f o r e a n a p p l i c a t i o n
' s e a l a n t i s n o t r e q u i r e d .
(28) I n s t a l l t h e (axle) yoke on 8 3/8-inch diameter
i g gear axles w i t h Removal/Installation Tool C-
1 8 a n d H o l d i n g Tool C-3281. F o r 9 1/4-inch diam-
eter r i n g gear axles, use Removal/Installation Tool
C-496 and Holding Tool C-3281.
(29) Remove the tools a n d i n s t a l l a " B e l l e v i l l e "
washer w i t h t h e convex side o f t h e washer facing
outward a n d the r e t a i n i n g n u t o n t h e end o f t h e
drive p i n i o n gear shaft.
(30) Retain drive p i n i o n gear shaft (axle) yoke w i t h
H o l d i n g Tool C-3281 a n d i n i t i a l l y t i g h t e n t h e drive
p i n i o n gear shaft n u t enough to remove t h e bearing
"end play". W h i l e i n i t i a l l y t i g h t e n i n g t h e n u t , rotate
the drive p i n i o n gear shaft t o ensure t h a t t h e bear-
i n g rollers are correctly "seated" (Fig. 34).
(31) T i g h t e n the d r i v e p i n i o n gear shaft n u t w i t h
285 N«m (210 ft-lbs) torque ( m i n i m u m ) .
Fig. 34 Tightening Drive Pinion Gear Shaft Nut
(32) Remove the tools a n d rotate t h e drive p i n i o n
gear shaft several complete revolutions i n b o t h direc-
tions to additionally "seat" t h e b e a r i n g rollers.
CAUTION: Never loosen the drive pinion gear shaft
nut to decrease the drive pinion gear shaft bearing
"preload" torque. If the specified "preload" torque
is exceeded, a replacement collapsible spacer must
be installed and the nut re-tightened until the spec-
ified bearing "preload" torque is obtained.
(33) Measure the drive p i n i o n gear shaft b e a r i n g
"preload" torque by r o t a t i n g drive p i n i o n gear shaft
w i t h a Newton-meter or a n inch-pound torque
wrench. The correct b e a r i n g "preload" torque i s 2 to
4 N-m (20 to 35 in-lbs) for both 8 3/8-inch a n d 9 1/
4-inch diameter r i n g gear axles w i t h replacement
bearings a n d the drive p i n i o n gear shaft n u t t i g h t -
ened w i t h a m i n i m u m o f 285 N * m (210 ft-lbs) torque
(Fig. 35).