2005 INFINITI QX4 4WD

AT-270
DISASSEMBLY
Revision: October 20052005 QX56
37. Remove O-ring from A/T assembly harness connector.
38. Disconnect TCM connectors.
CAUTION:
Be careful not to damage connectors.
39. Remove A/T assembly harness connector from control valve
with TCM using flat blade screwdriver.
40. Disconnect TCM connector and park/neutral position switch
connector.
CAUTION:
Be careful not to damage connectors.
41. Remove rear extension assembly (2WD models) or adapter case assembly (4WD models) according to
the following procedures.
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DISASSEMBLY
AT-271
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Revision: October 20052005 QX56
a.2WD models
i. Remove tightening bolts for rear extension assembly and trans-
mission case.
ii. Remove bracket.
iii. Tap rear extension assembly with soft hammer.
iv. Remove rear extension assembly from transmission case. (With
needle bearing)
b.4WD models
i. Remove tightening bolts for adapter case assembly and trans-
mission case.
ii. Remove bracket.
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SCIA5028E
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AT-278
DISASSEMBLY
Revision: October 20052005 QX56
67. Remove return spring from servo assembly.
68. Remove O-rings from servo assembly.
69. Remove parking actuator support from rear extension (2WD
models) or adapter case (4WD models).
70. Remove parking pawl (with return spring) and pawl shaft from
rear extension (2WD models) or adapter case (4WD models).
71. Remove return spring from parking pawl.
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DISASSEMBLY
AT-279
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Revision: October 20052005 QX56
72. Remove needle bearing from rear extension (2WD models) or
adapter case (4WD models).
73. Remove rear oil seal from rear extension (2WD models) or
adapter case (4WD models).
CAUTION:
Be careful not to scratch rear extension (2WD models) or
adapter case (4WD models).
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ASSEMBLY
AT-303
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Revision: October 20052005 QX56
22. Measure clearance between retaining plate and snap ring. If not
within specified clearance, select proper retaining plate.
23. Install needle bearing to transmission case.
CAUTION:

Take care with the direction of needle bearing. Refer to
AT-260, "
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings" .

Apply petroleum jelly to needle bearing.
24. Install revolution sensor to transmission case. Tighten revolution
sensor bolt to the specified torque. Refer to AT-250, "
Compo-
nents" .
CAUTION:

Do not subject it to impact by dropping or hitting it.

Be careful not to damage harness with the edge of case.

Do not allow metal filings, etc., to get on the sensor's
front edge magnetic area.

Do not place in an area affected by magnetism.
25. Install new rear oil seal into the rear extension (2WD models) or
adapter case (4WD models) until it is flush with component face,
using Tool or suitable drift.
CAUTION:

Apply ATF to rear oil seal.

Do not reuse rear oil seal.Specified clearance “A”:
Standard: 0.7 - 1.1mm (0.028 - 0.043 in)
Retaining plate:
Refer to AT-323, "
Reverse brake" .
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AT-304
ASSEMBLY
Revision: October 20052005 QX56
26. Install return spring to parking pawl.
27. Install parking pawl (with return spring) and pawl shaft to rear
extension (2WD models) or adapter case (4WD models).
28. Install parking actuator support to rear extension (2WD models)
or adapter case (4WD models).
29. Install needle bearing to rear extension (2WD models) or
adapter case (4WD models).
CAUTION:
Apply petroleum jelly to needle bearing.
30. Install new seal rings to output shaft.
CAUTION:

Do not reuse seal rings.

Apply petroleum jelly to seal rings.
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SCIA3424E
SCIA3423E
SCIA5221E
SCIA5209E

ASSEMBLY
AT-305
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Revision: October 20052005 QX56
31. Install parking gear to output shaft.
32. Install output shaft in transmission case.
CAUTION:
Be careful not to mistake front for rear because both sides
looks similar. (Thinner end is front side.)
33. Install bearing race in output shaft.
34. Install rear extension assembly (2WD models) or adapter case assembly (4WD models) according to the
following procedures.
a.2WD models
i. Apply recommended sealant (Genuine Anaerobic Liquid Gasket
or equivalent. Refer to GI-45, "
Recommended Chemical Prod-
ucts and Sealants" .) to rear extension assembly as shown.
CAUTION:
Complete remove all moisture, oil and old sealant, etc.
From the transmission case and rear extension assembly
mounting surfaces.
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SCIA5212E

AT-306
ASSEMBLY
Revision: October 20052005 QX56
ii. Install rear extension assembly to transmission case.
iii. Install bracket.
iv. Tighten rear extension assembly bolts to specified torque.
CAUTION:
Do not reuse self-sealing bolt.
b.4WD models
i. Install new gasket to transmission case.
CAUTION:

Do not reuse gasket.

Complete remove all moisture, oil and old gasket, etc.
From the transmission case and adapter case assembly
mounting surfaces.
ii. Install adapter case assembly to transmission case.
SCIA5029E
Rear extension assembly
bolt: 52 N·m (5.3 kg-m, 38 ft-lb)
Self-sealing bolt : 61 N·m (6.2 kg-m, 45 ft-lb)
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