Drive Axle, Speed Reducer, and Differential Repair
1400 SRM 575
1.
SPIDER, DIFFERENTIAL PINIONS, AND
THRUST WASHERS
Figure 11. Spider (Cross), Pinions, and Thrust
Washers Installation
1.
DIFFERENTIAL CASE
2.
ALIGNMENT MARKS
Figure 12. Second Half of Differential Case
Installation
7.
Install the differential assembly into the hous-
ing. The bearing cups must fit correctly into the
bores of the housing.
8.
Install the two bearing adjustment nuts into po-
sition in the housing bores. Use your hand to
tighten each adjustment nut against the bearing
cup. Use the adjustment nuts to put the drive
gear in the correct location as shown in Figure 13.
9.
Align the marks on the bearing caps with the
marks on the housing. See Figure 14. Tighten
the capscrews for the bearing caps to 95 to
110 N•m (70 to 81 lbf ft).
10. Tighten the adjustment nuts to 14 N•m (10 lbf ft)
to remove the clearance between the adjustment
nuts and the bearings. Loosen the adjustment
nut only until there is zero clearance between
the bearings and the adjustment nuts. Tighten
each adjustment nut one notch more than zero
clearance to put a preload on the bearings. Check
that the rotating torque is 1.7 to 4.0 N•m (15 to
35 lbf in).
11. Install the retainers for the adjustment nuts.
Tighten the hex capscrews to 19 N•m (14 lbf ft).
12. Install the bearing cup and O-ring in the differ-
ential housing. Apply a bead of sealant (Loctite
®
515 or equivalent) to the flange of the differen-
tial housing. Install the speed reducer housing to
the differential housing. Tighten the capscrews
to 52 N•m (38 lbf ft).
13. Install the reduction gear in the speed reducer
housing. Install the bearing cone. Install the
lock nut with the pin away from the gear. Use
a thread adhesive (Loctite 271 or equivalent) on
the threads of the nut. Tighten the lock nut to
135 N•m (100 lbf ft). Rotate the reduction gear
at least five times. Loosen the lock nut until the
bearings are loose. Tighten the lock nut to 7 N•m
(5 lbf ft). Install the lockwasher, rotating the nut
as necessary to align the holes. Install the outer
lock nut. Use a thread adhesive (Loctite 271 or
equivalent) on the threads of the nut. Tighten
the lock nut to 135 N•m (100 lbf ft).
14. Install the bearings and the cluster gear and pin-
ion in the speed reducer housing. Apply a bead of
sealant (Loctite 515 or equivalent) to the flange
of the speed reducer housing. Install the other
half of the speed reducer housing. Use a thread
sealant on the capscrews and tighten the cap-
screws to 38 N•m (28 lbf ft).
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