Nissan Frontier. Manual - part 331

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[C200]

REAR FINAL DRIVE

ASSEMBLY INSPECTION AND ADJUSTMENT

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

DLN-220, "Changing Differential

Gear Oil"

.

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

DLN-223,

"Removal and Installation"

.

Total Preload Torque

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

NOTE:

Total preload torque = Drive pinion bearing preload torque +

Side bearing preload torque

• 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.

Drive Gear Runout

1.

Gear carrier

2.

Drive pinion lock nut

3.

Companion flange

4.

Front oil seal

5.

Drive pinion front bearing

6.

Drain plug

7.

Collapsible spacer

8.

Side bearing cap

9.

Drive pinion rear bearing

10. Drive pinion height adjusting washer 11. Drive pinion

12. Drive gear

13. Differential case

14. Carrier cover

15. Filler plug

16. Pinion mate shaft

17. Lock pin

18. Side bearing

19. Side bearing adjusting washer

20. Side gear thrust washer

21. Side gear

22. Pinion mate gear

23. Pinion mate thrust washer

24. Gasket

25. Breather

Tool number

: ST3127S000 (J-25765-A)

Total preload torque

: Refer to 

DLN-244, "Inspection and Adjust-

ment"

If the total preload torque is greater than specification

On drive pinion bearings: Replace the collapsible spacer.
On side bearings:

Use thinner side bearing adjusting washers by the same 
amount to each side. Refer to 

DLN-244, "Inspection and Adjust-

ment"

.

If the total preload torque is less than specification

On drive pinion bearings: Tighten the drive pinion nut.
On side bearings:

Use thicker side bearing adjusting washers by the same 
amount to each side. Refer to 

DLN-244, "Inspection and Adjust-

ment"

.

PDIA0309E

REAR FINAL DRIVE

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1. Fit a dial indicator to the drive gear back face.
2. Rotate the drive gear to measure runout.

• If the runout is outside of the limit, check the condition of the drive

gear assembly. Foreign material may be caught between the drive

gear and differential case, or the differential case or drive gear may

be deformed.

CAUTION:

Replace drive gear and drive pinion as a set.

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. Apply red lead to drive gear.

NOTE:

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

tions evenly spaced on the drive gear.

2. Rotate the drive gear back and forth several times. Then check

for correct drive pinion to drive gear tooth contact as shown.

CAUTION:

Check tooth contact on drive side and reverse side.

3. If the tooth contact is improperly adjusted, follow the procedure

below to adjust the pinion height (dimension X).

Runout limit

: Refer to 

DLN-244, "Inspection 

and Adjustment"

SPD886

SPD199

SDIA0570E

SDIA0517E

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< UNIT DISASSEMBLY AND ASSEMBLY >

[C200]

REAR FINAL DRIVE

• If the tooth contact is near the face (face contact), or near the heel

(heel contact), use a thicker drive pinion height adjusting washers

to move the drive pinion closer to the drive gear.

Refer to 

DLN-244, "Inspection and Adjustment"

.

• If the tooth contact is near the flank (flank contact), or near the toe

(toe contact), use a thinner drive pinion height adjusting washers to

move the drive pinion farther from the drive gear.

Refer to 

DLN-244, "Inspection and Adjustment"

.

Backlash

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

lash.

• If the backlash is outside of the specification, change the thickness

of each side bearing adjusting washer.

CAUTION:

Do not change the total thickness of side bearing adjusting washers as it will change the side bearing

preload torque.

Companion Flange Runout

PDIA0440E

PDIA0441E

Backlash:

Refer to 

DLN-244, "Inspection and 

Adjustment"

If the backlash is greater than specification:

Make drive gear back side adjusting washer thicker, 
and drive gear tooth side adjusting washer thinner by 
the same amount. Refer to 

DLN-244, "Inspection and 

Adjustment"

.

If the backlash is less than specification:

Make drive gear back side adjusting washer thinner, 
and drive gear tooth side adjusting washer thicker by 
the same amount. Refer to 

DLN-244, "Inspection and 

Adjustment"

.

SPD196

REAR FINAL DRIVE

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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.

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 pin-

ion, possible cause could be an assembly malfunction of drive pinion and drive pinion bearing or a mal-

functioning drive pinion bearing.

c. If the runout is still outside of the runout limit after repair of the assembly of drive pinion and drive pinion

bearing or drive pinion bearing, replace the companion flange.

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.

3. For proper reinstallation, paint matching marks 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.

4. Remove side bearing caps.

Runout limit:

Refer to 

DLN-244, "Inspection and 

Adjustment"

SDIA2078E

Tool number

: KV10111100 (J-37228)

SDIA2581E

SPD714

SPD202