Nissan Frontier D22. Manual - part 727

FRONT FINAL DRIVE ASSEMBLY

FFD-25

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FFD

17. Remove the J34309 pinion preload shim selector tool from the

final drive housing and disassemble to retrieve the pinion bear-
ings.

TOOTH CONTACT

Gear tooth contact pattern check is necessary to verify correct relationship between ring gear and drive pinion.
Hypoid gear sets which are not positioned properly in relation to one another may be noisy, or have short life,
or both. With a pattern check, the most desirable contact for low noise level and long life can be assured.

1.

Thoroughly clean ring gear and drive pinion teeth.

2.

Sparingly apply a mixture of powdered ferric oxide and oil or
equivalent to 3 or 4 teeth of ring gear drive side.

3.

Hold companion flange steady by hand and rotate the ring gear
in both directions.

SPD205A

SPD357

SPD677

SPD007-B

FFD-26

FRONT FINAL DRIVE ASSEMBLY

INSTALLATION OF DRIVE PINION ASSEMBLY

1.

Press-fit front and rear bearing outer races using Tools.

2.

Select drive pinion height adjusting washer and drive pinion
bearing preload adjusting washer. Refer to 

FFD-21, "DRIVE

PINION GEAR HEIGHT AND PINION BEARING PRELOAD"

 .

3.

Install drive pinion height adjusting washer on drive pinion, and
press-fit drive pinion rear bearing inner cone in it, using press
and Tool.

4.

Place drive pinion front bearing inner cone in final drive housing.

5.

Apply multi-purpose grease to cavity at sealing lips of front oil
seal. Install front oil seal using Tool.

Tool number

A

: ST30611000 (J25742-1)

B

: ST30621000 (J25742-5)

C

: ST30613000 (J25742-3)

WDIA0019E

Tool number

: ST30901000 (J26010-01)

SPD377

SPD581

Tool number

: KV38100500 (J25273)

SPD680

FRONT FINAL DRIVE ASSEMBLY

FFD-27

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6.

Place drive pinion bearing preload adjusting spacer, drive pinion
bearing preload adjusting washer and drive pinion in final drive
housing.

7.

Insert companion flange into drive pinion by tapping the com-
panion flange with a soft hammer.

8.

Tighten drive pinion nut while holding companion flange with
Tool.

●

The threaded portion of drive pinion and pinion nut should be
free from oil or grease.

9.

Turn drive pinion in both directions several revolutions, and
measure drive pinion bearing preload with front oil seal resis-
tance using Tool.

●

When drive pinion bearing preload with front oil seal resis-
tance is outside the specifications, replace drive pinion bear-
ing preload adjusting washer and spacer with a different
thickness.

WDIA0020E

SPD681

Tool number

: KV38108300 (J-44195)

Drive pinion nut

: 186 - 294 N·m (19 - 30 kg-m, 
137 - 217 ft-lb)

SPD478A

Drive pinion bearing 
preload with front oil 
seal resistance

: 1.1 - 1.4 N·m (11 - 14 kg-cm, 
9.5 - 12.2 in-lb)

Tool number 

: ST3127S000 (J25765-A)

SPD664

FFD-28

FRONT FINAL DRIVE ASSEMBLY

ASSEMBLY OF DIFFERENTIAL SIDE SHAFT

1.

Install oil seal using Tool.

2.

Install grease seal with suitable tool.

3.

Install extension tube retainer, front axle bearing and front axle
bearing collar on differential side shaft using a suitable tool.

ASSEMBLY OF DIFFERENTIAL CASE ASSEMLBY

1.

Install side gears, pinion mate gears and pinion mate thrust
washers into differential case.

Tool number

: KV38100200 (J26233)

WDIA0017E

SPD654-A

WDIA0018E

SPD552