Lubricant; Drain And Refill - Dodge D150 1990 Service Manual

2 - 50 FRONT SUSPENSION
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LUBRICANT
Multi-purpose, hypoid gear l u b r i c a n t , as defined b y
MIL-L-2105-B and b y A P I G L 5 q u a l i t y specifica-
tions, should be used for Model 44 f r o n t axles. M O -
PAR H y p o i d Gear L u b r i c a n t conforms w i t h b o t h o f
these specifications and is h i g h l y recommended for
use w i t h b o t h R a m T r u c k and Ramcharger vehicles.
Each t i m e a 4 W D vehicle is serviced for other rea-
sons (e.g., a n engine o i l change), inspect the f r o n t
axle for evidence o f l u b r i c a n t leakage. I f leakage ex-
ists, observe t h e l u b r i c a n t level i n t h e differential
housing t h r o u g h t h e f i l l hole. W h e n observing t h e
level, ensure t h a t the vehicle is level o n the hoist.
The l u b r i c a n t level should be m a i n t a i n e d a t the bot-
t o m o f f i l l hole.
CAUTION: If the front axle is submerged in water,
the axle lubricant must be replaced immediately to
avoid the possibility of premature axle failure re-
sulting from water contamination of the lubricant.
DRAIN AND REFILL
(1) D r i v e the vehicle w i t h t h e f r o n t axle shafts en-
gaged (i.e., i n 4WD) u n t i l the gear l u b r i c a n t i n the
axle a t t a i n s the n o r m a l operating temperature.
(2) Raise and support the vehicle.
(3) Remove the l u b r i c a n t f i l l holie p l u g f r o m the dif-
ferential housing cover.
(4) Remove the differential housing cover and allow
the o r i g i n a l l u b r i c a n t to completely d r a i n from the
housing and the axle shaft tubes.
(5) F l u s h the differential a n d t h e h o u s i n g cavity
w i t h a " f l u s h i n g " o i l (or l i g h t engine oil) t o remove
residual l u b r i c a n t and foreign matter.. D o n o t u s e
w a t e r , s t e a m , k e r o s e n e o r g a s o l i n e f o r f l u s h i n g .
(6) I n s t a l l t h e differential housing cover a n d
t i g h t e n the bolts w i t h 47 N*m (35 ft-lbs) Torque.
(7) Refill the differential housing w i t h t h e specified
q u a n t i t y of M O P A R Hypoid Gear L u b r i c a n t . Refer t o
the Specifications chart.
(8) I n s t a l l and t i g h t e n the f i l l hole p l u g w i t h 34
N-m (25 ft-lbs) torque.
(9) Remove the supports and lower t h e vehicle.