Dodge 2000 DURANGO Service Manual page 123

DN
REMOVAL AND INSTALLATION (Continued)
Fig. 16 8 1/4 Axle Pinion Seal Installation
1 – SPECIAL TOOL C-4735
2 – DIFFERENTIAL HOUSING
3 – SPECIAL TOOL C-4076-A
(9) Seat companion flange on pinion shaft with
Installer C-3718 and Holder 6719.
(10) Remove the Installer C-3718 and install the
pinion washer and a new pinion nut. The convex side
of the washer must face outward.
CAUTION: Do not exceed the minimum tightening
torque when installing the companion flange retain-
ing nut at this point. Damage to collapsible spacer
or bearings may result.
(11) Hold companion flange with Holder 6719 and
tighten the pinion nut to 285 N·m (210 ft. lbs.) (Fig.
17). Rotate pinion several revolutions to ensure the
bearing rollers are seated.
(12) Rotate the pinion using an (in. lbs.) torque
wrench. Rotating torque should be equal to the read-
ing recorded during removal, plus an additional 0.56
N·m (5 in. lbs.) (Fig. 18).
CAUTION: Never loosen pinion nut to decrease pin-
ion bearing rotating torque and never exceed spec-
ified preload torque. If rotating torque is exceeded,
a new collapsible spacer must be installed. The
torque sequence will then have to be repeated.
(13) If the rotating torque is low, use Holder 6719
to hold the companion flange (Fig. 17) and tighten
the pinion nut in 6.8 N·m (5 ft. lbs.) increments until
proper rotating torque is achieved.
NOTE: The bearing rotating torque should be con-
stant during a complete revolution of the pinion. If
the rotating torque varies, this indicates a binding
condition.
8 1/4 AND 9 1/4 AXLE
Fig. 17 Tightening Pinion Nut
1 – DIFFERENTIAL HOUSING
2 – COMPANION FLANGE HOLDER
3 – TORQUE WRENCH
Fig. 18 Check Pinion Rotation Torque
1 – COMPANION FLANGE
2 – INCH POUND TORQUE WRENCH
(14) The seal replacement is unacceptable if the
final pinion nut torque is less than 285 N·m (210 ft.
lbs.).
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