Nissan Frontier. Manual - part 355

DLN-322

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: M226 (ELD) ]

REAR FINAL DRIVE

INSPECTION AND ADJUSTMENT

• Drain the differential gear oil before inspection and adjustment. Refer to 

DLN-310, "Changing Differential

Gear Oil"

.

• Remove and install the carrier cover as necessary for inspection and adjustment. Refer to 

DLN-318,

"Removal and Installation"

.

Total Preload Torque

1. Rotate the drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
2. Rotate the drive pinion at least 20 times to check for smooth operation of the bearings.
3. Measure total preload torque using Tool. Refer to 

DLN-331,

"Inspection and Adjustment"

.

• If the measured value is out of the specification, check and

adjust each part. Adjust the drive pinion bearing preload

torque first, then adjust the side bearing preload torque.

NOTE:

Total preload torque = Drive pinion bearing preload torque +

Side bearing preload torque

Tooth Contact

Checking gear tooth contact pattern is necessary to verify correct relationship between drive gear and drive

pinion. Gears which are not positioned in proper arrangement may be noisy and/or have a short life. Check

gear tooth contact pattern to obtain the best contact for low noise and long life.
1. Thoroughly clean drive gear and drive pinion teeth.
2. Apply red lead to the drive gear.

• Apply red lead to both faces of three to four gears, at four loca-

tions evenly spaced on the drive gear.

3. Hold companion flange steady by hand and rotate drive gear in

both directions.

Tool number

: ST3127S000 (J-25765-A)

If the total preload torque is greater than specification

On drive pinion bearings

: Replace collapsible spacer.

On side bearings

: Loosen side bearing adjuster.

If the total preload torque is less than specification

On drive pinion bearings

: Tighten drive pinion lock nut.

On side bearings

: Tighten side bearing adjuster.

PDIA0309E

PDIA0321E

PDIA0322E

REAR FINAL DRIVE

DLN-323

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: M226 (ELD) ]

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4. If outside the standard, replace the rear final drive assembly. Refer to 

DLN-319, "Removal and Installa-

tion"

.

Backlash

1. Fit a dial indicator to the drive gear face to measure the back-

lash.

2. If the backlash is outside of the specification, adjust each side bearing adjuster.
a. Remove adjuster lock plates.
b. Loosen side bearing cap bolts.

c. Tighten or loosen each side bearing adjuster using Tool.

SDIA2591E

Backlash

: 0.12 - 0.20 mm (0.0050 - 0.0078 in)

SDIA2640E

PDIA0331E

Tool number

:  —  (C - 4164)

PDIA0337E

DLN-324

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: M226 (ELD) ]

REAR FINAL DRIVE

CAUTION:

Do not change the side bearing side bearing adjusters by

different amounts as it will change the side bearing preload

torque.

d. Tighten side bearing cap bolts to the specified torque.
e. Install adjuster lock plate and tighten to the specified torque.

CAUTION:

Check tooth contact and total preload torque after adjusting

side bearing adjuster. Refer to 

DLN-331, "Inspection and

Adjustment"

.

Companion Flange Runout

1. Rotate companion flange and check for runout on the compan-

ion flange face (inner side of the bolt holes) and companion

flange inner side (socket diameter) using suitable tool. Refer to

DLN-331, "Inspection and Adjustment"

.

2. If the runout is outside the runout limit, follow the procedure

below to adjust.

a. Rotate the companion flange on the drive pinion by 90

°, 180°

and 270

° while checking for the position where the runout is

minimum.

b. If the runout is still outside of the runout limit after the companion

flange has been rotated on the drive pinion, possible cause

could be an assembly malfunction of drive pinion and drive pin-

ion bearing or a malfunctioning drive pinion bearing.

c.

If the runout is still outside of the runout limit after replacing the companion flange. Replace the rear final

drive assembly. Refer to 

DLN-319, "Removal and Installation"

.

DISASSEMBLY

Differential Assembly

1. Remove carrier cover bolts.
2. Remove carrier cover using Tool.

CAUTION:

• Do not damage the mating surface.

• Do not insert flat-bladed screwdriver, this will damage the

mating surface.

If the backlash is greater than specification:

Loosen side bearing adjuster (A) and tighten side 
bearing adjuster (B) by the same amount.

If the backlash is less than specification:

Loosen side bearing adjuster (B) and tighten side 
bearing adjuster (A) by the same amount.

PDIA0330E

PDIA0331E

SDIA2078E

Tool number

: KV10111100 (J-37228)

PDIA1041E

REAR FINAL DRIVE

DLN-325

< UNIT DISASSEMBLY AND ASSEMBLY >

[REAR FINAL DRIVE: M226 (ELD) ]

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3. Remove sensor connector bolts and disconnect the harness

connector from the differential lock solenoid.

4. For proper reinstallation, paint matching mark on one side of

side bearing cap.

CAUTION:

• Side bearing caps are line-board for initial assembly. The

matching marks are used to reinstall them in their original

positions.

• For matching mark, use paint. Do not damage side bear-

ing cap.

5. Remove adjuster lock plates.
6. Remove side bearing caps.

7. Loosen side bearing adjusters using Tool.

8. Remove differential lock position switch.
9. Remove differential lock position switch bracket.

SDIA2585E

SDIA2583E

PDIA0331E

Tool number

:  —  (C - 4164)

PDIA0337E