Infiniti QX56 (JA60). Manual - part 335

REAR FINAL DRIVE

DLN-263

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

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1. Apply differential gear oil to the side bearings, and install the dif-

ferential case assembly with the side bearing outer races into

the gear carrier.

CAUTION:

Do not reuse side bearing outer race when replacing side

bearing inner race (replace as a set).

2. Insert the left and right original side bearing adjusting washers in

place between side bearings and gear carrier.

3. Align the matching mark on the side bearing cap with the match-

ing mark on the gear carrier.

4. Install the side bearing caps and tighten the side bearing cap

bolts to the specified torque. 

5. Turn the differential assembly several times to seat the side

bearings.

6. To determine side bearing preload torque, measure the pulling

force of the differential assembly at the drive gear bolt using

Tool.

NOTE:

If pulling force of the differential assembly at the drive gear bolt

is within specification, side bearing preload torque will also be

within specification. Refer to 

DLN-270, "Inspection and Adjustment"

.

SPD527

SPD924

SDIA1795E

Tool number

: 

—

 (J-8129)

Specification

: Refer to 

DLN-270, "Inspection and 

Adjustment"

SPD194A

DLN-264

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

REAR FINAL DRIVE

7. If the pulling force is outside the specification, use a thicker or

thinner side bearing adjusting washer to adjust. Refer to 

DLN-

270, "Inspection and Adjustment"

.

CAUTION:

Select a side bearing adjusting washer for right and left

individually.

8. Record the total amount of washer thickness required for the correct side bearing preload torque.

ASSEMBLY

Drive Pinion Assembly

1. Install the drive pinion front and rear bearing outer races using

Tools.

CAUTION:

Do not reuse drive pinion front and rear bearing outer race.

2. Select a drive pinion height adjusting washer. Refer to 

DLN-270, "Inspection and Adjustment"

.

3. Install the selected drive pinion height adjusting washer to the

drive pinion. Press the drive pinion rear bearing inner race to it

using Tool.

CAUTION:

• Install the drive pinion height adjusting washer in the

proper direction as shown.

• Do not reuse drive pinion rear bearing inner race.

If the pulling force is less than the specification:

Use a thicker side bearing adjusting washer.

If the pulling force is greater than the specification:

Use a thinner side bearing adjusting washer.

SPD772

Tool number

A: ST15310000 ( — )
B: ST35325000 ( — )
C: ST30621000 ( — )

SPD992

Tool number

: ST30022000 ( — )

SPD377

REAR FINAL DRIVE

DLN-265

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

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4. Assemble the collapsible spacer to the drive pinion.

CAUTION:

Do not reuse collapsible spacer.

5. Apply differential gear oil to the drive pinion rear bearing, and

install the drive pinion assembly to the gear carrier.

6. Apply differential gear oil to the drive pinion front bearing, and

install the drive pinion front bearing inner race to the drive pinion

assembly.

CAUTION:

Do not reuse drive pinion front bearing inner race.

7. Press the drive pinion front bearing inner race to the drive pinion

as far as drive pinion lock nut can be tightened using suitable

spacer.

8. Apply multi-purpose grease to the lips of the new front oil seal.

Then drive the new front oil seal in evenly until it becomes flush

with the gear carrier using Tool.

CAUTION:

• Do not reuse front oil seal.

• Do not incline the new front oil seal when installing.

• Apply multi-purpose grease to the lips of the new front oil

seal.

9. Install the companion flange to the drive pinion while aligning the matching marks.

PDIA0492E

SPD896

Tool number

: ST15310000 ( — )

PDIA0563E

DLN-266

< DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: R230]

REAR FINAL DRIVE

10. Apply anti-corrosive oil to the threads of the drive pinion and the

seating surface of the new drive pinion lock nut. Then adjust the

drive pinion lock nut tightening torque using suitable tool (A),

and check the drive pinion bearing preload torque using Tool

(B).

CAUTION:

• Do not reuse drive pinion lock nut.

• Apply anti-corrosive oil to the threads of the drive pinion

and the seating surface of the new drive pinion lock nut.

• Adjust the drive pinion lock nut tightening torque to the

lower limit first. Do not exceed the drive pinion lock nut

specified torque. 

• If the drive pinion bearing preload torque exceeds the

specified value, replace collapsible spacer and tighten it

again to adjust. Do not loosen drive pinion lock nut to

adjust the drive pinion bearing preload torque.

• After adjustment, rotate drive pinion back and forth 2 to 3

times to check for unusual noise, rotation malfunction,

and other malfunctions.

11. Check companion flange runout. 
12. Install the differential case assembly. 

Differential Assembly

1. Install side gear thrust washers with the same thickness as the

ones installed prior to disassembly, or reinstall the old ones on

the side gears.

2. Install the side gears and side gear thrust washers into the dif-

ferential case.

CAUTION:

Make sure that the circular clip is installed to side gears.

3. Install the pinion mate thrust washers to the two pinion mate

gears. Then install the pinion mate gears with the pinion mate

thrust washers by aligning them in diagonally opposite positions

and rotating them into the differential case.

Tool number

B: ST3127S000 (J-25765-A)

Drive pinion bearing preload torque

: Refer to 

DLN-270, "Inspection and Adjustment"

WDIA0379E

SDIA0193J

SDIA2025E