Tools Required
• | J 29369-2 Bushing and Bearing Remover
2-3 in |
• | J 45754 Pinion Bearing Race Remover/Installer -
9.25 inch Axle |
• | J 45755 Front Axle Bushing Remover/Installer |
• | J 45765 Pinion Remover -
8.25 inch/9.25 inch Axles |
Inspection Procedure
Perform the following before disassembling the axle:
- Remove the fill plug from the axle.
- Remove the drain plug from the axle.
- Drain the axle lubricant.
- Inspect the oil and the case for metal chips.
Determine the
source of the metal chips, such as a broken gear or bearing cage.
- Check the ring gear backlash. Refer to
Backlash Inspection and Adjustment
.
This information can be used in order to determine the cause of the axle problem.
The information will also help when setting up and preloading the differential case.
Determine the cause of the axle problem before disassembly, if possible.
Disassembly Procedure
- Remove the inner axle shaft housing to differential
carrier assembly bolts.
- Remove the inner axle housing with the inner axle shaft.
- Install the inner axle shaft housing into a vise.
- Install the J 45755-2 (2), J 45755-1 (1),
and the forcing screw, bearing and washers (3) over the inner shaft housing
bushing as shown.
- Remove the inner shaft housing bushing using the J 45755
.
- Remove the inner axle shaft from the inner axle housing using a hammer
and brass drift.
- Install the J 29369-2
behind the inner axle shaft seal.
- Install the J 2619-01
(2) to
the J 29369-2
(1).
- Remove the inner axle shaft seal using the J 2619-01
.
- Install the J 29369-2
behind the inner axle shaft bearing.
- Install the J 2619-01
(2) to
the J 29369-2
(1).
- Remove the inner axle shaft bearing using the J 2619-01
.
- Place the differential carrier assembly into a vise.
Clamp
only on the mounting flange of the differential carrier assembly case.
- Remove the left side inner axle shaft using a hammer
and a brass drift.
- Install the J 29369-2
(2)
behind the inner axle shaft seal.
- Install the J 2619-01
(1) to
the J 29369-2
(2).
- Remove the inner axle shaft seal using the J 2619-01
.
- Install the J 29369-2
(2)
behind the inner axle shaft bearing.
- Install the J 2619-01
(1) to
the J 29369-2
(2).
- Remove the inner axle shaft bearing using the J 2619-01
.
- Remove the front differential carrier hole plug.
- Remove the differential carrier assembly bolts.
- Separate the left carrier case half from the right
carrier case half by tapping on the on the carrier case lugs with a brass drift and
a hammer.
- Remove the differential case assembly.
- Disconnect the right side differential bearing adjuster nut lock from
the differential bearing adjuster nut by prying up on the lock.
- Remove the differential bearing adjuster nut lock bolt
from the differential bearing adjuster nut.
- Remove the differential bearing adjuster nut lock from
the differential bearing adjuster nut.
- Remove the right side differential side bearing cup,
the differential bearing adjuster nut, and the differential bearing adjuster sleeve
by doing the following:
28.1. | Install the J 36599-A
onto the differential
bearing adjuster nut. |
28.2. | Turn the J 36599-A
clockwise in order
to push the bearing cup out of the bore. |
28.3. | Remove the differential bearing adjuster sleeve using a hammer and a brass
drift. |
- Remove the left side differential bearing adjuster
by doing the following:
29.1. | Install the J 36615
onto the differential
bearing adjuster nut as shown. |
29.2. | Turn the J 36615
counterclockwise
in order to remove the differential bearing adjuster nut, the O-ring seal and the
differential side bearing cup. |
- Install the J 8614-01
as
shown.
Remove the pinion nut while holding the J 8614-01
.
- Remove the washer.
- Install the J 8614-2 (2) and the J 8614-3 (3)
into the J 8614-01
(1) as shown.
- Remove the pinion yoke by turning the J 8614-3 (3) clockwise
while holding the J 8614-01
(1).
Important: Carefully pry the seal from the bore. Do
not distort or scratch the aluminum case.
- Remove the pinion oil seal using a suitable seal removal tool.
- Install the J 45765
to the left side differential carrier case half over the drive pinion as shown.
- Turn the forcing screw of the J 45765
clockwise to remove the following components from the left side differential carrier
case half:
• | The pinion gear selectable shim |
• | The inner pinion bearing |
- Remove the collapsible spacer from the pinion.
- Remove the outer pinion bearing from the differential carrier case half.
- Remove the inner pinion bearing by installing the J 22912-B
between the pinion bearing and the pinion
gear and pressing the bearing off the pinion.
- Remove the pinion gear selectable shim.
- Install the J 45754-3 over the inner pinion
bearing cup.
- Install the forcing screw (1) of the J 45754
into the J 45754-3 (2).
- Drive out the inner pinion bearing cup by pounding on the forcing screw
with a hammer.
- Install the J 45754-2 (2) and the forcing
screw (1) over the outer pinion bearing cup bore.
- Install the J 45754-4 (3) into the pinion
bearing bore behind the outer pinion bearing cup.
Slowly turn the forcing
screw (1) until the J 45754-4 is evenly seated behind the outer pinion
bearing cup bore and the J 45754-2 (2) is evenly seated over the outer
pinion bearing cup bore.
- Remove the outer pinion bearing cup by turning the forcing screw clockwise.
- Install the J 45755-3 (2), J 45755-4 (3),
and the forcing screw, bearing and the washers (1) over the differential carrier
assembly bushing as shown.
- Remove the differential carrier assembly bushing using the J 45755
.