2008 INFINITI FX35 bearing

FFD-30
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
3. Press-fit side bearing outer race into gear carrier with tool.CAUTION:
 At first, using a hammer, tap bearing outer race until itbecomes flat to gear carrier.
 Never reuse side bearing outer race.
4. Place the differential case assembly into gear carrier.
5. Install side bearing adjusting shim before disassembling or shim which thickness is the same as the one before disassembling.
6. Install side retainer assembly to gear carrier. CAUTION:
Never install O-ring.
7. Install side retainer mounting bolts to the specified torque. Refer to "COMPONENTS (VQ35DE MODELS)", "COMPONENTS
(VK45DE MODELS)".
8. Measure the turning torque of the gear carrier at the drive gear
mounting bolts with a spring gauge. Tool number A: ST30611000 (J-25742-1)
B: KV31103000 (J-38982)
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PDIA0671E
PDIA0678E
PDIA0669E
Tool number : — (J-8129)
Specification:
34.2 - 39.2 N (3.5 - 4.0 kg, 7.7 - 8.8 lb) of pulling force at
the drive gear bolt
SPD194A
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FINAL DRIVE ASSEMBLYFFD-31
< SERVICE INFORMATION >
CEF
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9. If the turning torque is outside the specification, use a thicker/ thinner side bearing adjusting shim to adjust. Refer to FFD-39,
"Inspection and Adjustment".
10. Record the total amount of shim thickness required for the cor- rect carrier side bearing preload.
Pinion Gear Height
If the hypoid gear set has been replaced, se lect the pinion height adjusting washer.
1. Use the formula below to calculate pinion height adjusting washer thickness.
2. Select the proper pinion height adjusting washer. Refer to FFD-39, "
Inspection and Adjustment".
If impossible find the desired thickness of washer, us e washer with thickness closest to the calculated
value.
Pinion Bearing Preload
 Assemble the drive pinion parts if they are disassembled. Refer to "Drive Pinion Assembly".
1. Make sure all parts are clean. Also, make sure the bearings are well lubricated with gear oil.
2. Install companion flange (1). NOTE:
When reusing drive pinion, align the matching mark (B) of drive
pinion with the matching mark (A) of companion flange, and then
install companion flange (1).If the turning torque is l
ess than the specified range:
Decrease the side bearing adjusting shim thickness.
If the turning torque is gr eater than the specification:
Increase the side bearing adjusting shim thickness.
SPD772
Washer selection equation:
T = T
0 + (t1 - t2)
T: Correct washer thickness
T
0: Removed washer thickness
t
1: Old drive pinion head letter “H × 0.01”
(“H”: machined tolerance 1/100 mm × 100)
t
2: New drive pinion head letter “H × 0.01”
(“H”: machined tolerance 1/100 mm × 100)
Example:
T = 3.21 + [(2 × 0.01) - (-1 × 0.01)] = 3.24
T
0:3.21
t
1:+2
t
2:-1
Example: Calculated value... T = 3.22 mm
Used washer... T = 3.21 mm
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PDIA0799J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-32
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
3. Temporarily tighten removed drive pinion lock nut to drive pinion.NOTE:
Use removed drive pinion lock nut only for the preload measurement.
4. Rotate drive pinion at least 20 times to check for smooth operation of the bearing.
5. Tighten to drive pinion lock nut, while adjust pinion bearing pre- load torque.
CAUTION:
 Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.
 After adjustment, rotate dri ve pinion back and forth 2 to 3
times to check for unusual no ise, rotation malfunction,
and other malfunctions.
6. If the pinion bearing preload torque is outside the specification, use a thicker/thinner drive pinion bearing adjusting washer and
drive pinion adjusting washer to adjust. Refer to FFD-39,
"Inspection and Adjustment" and FFD-39, "Inspection and
Adjustment".
7. Remove companion flange, after adjustment.
ASSEMBLY
Drive Pinion Assembly
1. Install pinion front and rear bearing outer races using drifts. CAUTION:
 At first, using a hammer, tap bearing outer race until itbecomes flat to gear carrier.
 Never reuse pinion front and rear bearing outer race. Tool number A: ST3127S000 (J-25765-A)
Drive pinion lock nut tightening torque:
127.4 - 245.0 N·m (13.0 - 25.0 kg-m, 94 - 181 ft-lb)
Pinion bearing preload: 0.78 - 1.57 N·m (0.08 - 0.16 kg-m, 7 - 13 in-lb)
When the preload torque is large: Decrease the drive pinion b earing adjusting washer and drive pinion adjusting
washer thickness.
When the preload is small: Increase the drive pinion bearing adjusti ng washer and drive pinion adjusting
washer thickness.
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Tool number A: ST37820000 ( — )
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3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FINAL DRIVE ASSEMBLYFFD-33
< SERVICE INFORMATION >
CEF
G H
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M A
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2. Temporarily install pinion height adjusting washer (1).
When hypoid gear se t has been replaced Select pinion height adjusting washer. Refer to "Pinion Gear
Height".
When hypoid gear set has been reused Temporarily install the removed pinion height adjusting washer
or same thickness washer to drive pinion.
3. Install selected pinion height adjusting washer (2) to drive pin- ion. Press pinion rear bearing inner race (1) to it, using drift.
CAUTION:
 Pay attention to the direction of pinion height adjusting
washer. (Assemble as shown in the figure.)
 Never reuse pinion rear bearing inner race.
4. Temporarily assemble removed drive pinion adjusting washer and drive pinion bearing adjusting washer or same thickness
them to drive pinion.
5. Apply gear oil to pinion rear bearing, and assemble drive pinion into gear carrier.
6. Apply gear oil to pinion front bearing, and assemble pinion front bearing inner race to drive pinion assembly.
CAUTION:
Never reuse pinion front bearing inner race.
7. Using suitable spacer (A), press the pinion front bearing inner race to drive pinion as far as drive pinion nut can be tightened.
8. Adjust pinion bearing preload. If necessary, select the appropri- ate drive pinion adjusting washer and drive pinion bearing
adjusting washer. Refer to "Pinion Bearing Preload".
9. Using the drifts, install front oil seal as shown in figure. CAUTION:
 Never reuse oil seal.
 When installing, never incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oilonto the circumference of oil seal.
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Tool number A: ST30032000 (J-26010-01)
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PDIA0681E
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Tool number A: ST33400001 (J-26082)
B: KV38102510 ( — )
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3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-34
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
10. Install companion flange (1).NOTE:
When reusing drive pinion, align the matching mark (B) of drive
pinion with the matching mark (A) of companion flange, and then
install companion flange (1).
11. Apply anti-corrosion oil to the thread and seat of new drive pinion lock nut, and temporarily tighten drive
pinion lock nut to drive pinion.
CAUTION:
Never reuse drive pinion lock nut.
12. Tighten to drive pinion lock nut, while adjust pinion bearing pre- load torque.
CAUTION:
 Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.
 After adjustment, rotate dri ve pinion back and forth 2 to 3
times to check for unusual no ise, rotation malfunction,
and other malfunctions.
13. Install differential case assembly. Refer to "Differential Assem- bly".
CAUTION:
Never install carrier cover yet.
14. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and companion flange runout. Refer to
"Drive Gear Runout", "Tooth Contact" , "Backlash", "Companion Flange Runout".
Recheck above items. Readjust the above description, if necessary.
15. Check total preload torque. Refer to "Total Preload Torque".
16. Install carrier cover. Refer to "Differential 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.
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Tool number A: ST3127S000 (J-25765-A)
Drive pinion lock nut tightening torque:
127.4 - 245.0 N·m (13.0 - 25.0 kg-m, 94 - 181 ft-lb)
Pinion bearing preload: 0.78 - 1.57 N·m (0.08 - 0.16 kg-m, 7 - 13 in-lb)
PDIA0802J
SDIA0193J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-36
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
9. Install drive gear on the mounting bolts, and then tighten to thespecified torque. Refer to "COMPONENTS (VQ35DE MOD-
ELS)", "COMPONENTS (VK45DE MODELS)".
CAUTION:
Tighten bolts in a crisscross fashion.
10. Press side bearing inner races to differential case, using the drift and the base.
CAUTION:
Never reuse side bearing inner race.
11. Press-fit side bearing outer race into side retainer with the drift and the drift bar.
CAUTION:
 At first, using a hammer, tap bearing outer race until itbecomes flat to side retainer.
 Never reuse side bearing outer race.
12. Press-fit side bearing outer race into gear carrier with the drift and the drift bar.
CAUTION:
 At first, using a hammer, tap bearing outer race until itbecomes flat to gear carrier.
 Never reuse side bearing outer race.
13. Place the differential case assembly into gear carrier.
14. Measure side bearing preload. If necessary, select the appropri-
ate side bearing adjusting shim. Refer to "Side Bearing Pre-
load".
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Tool number A: ST33230000 (J-25805-01)
B: ST33061000 (J-8107-2)
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Tool number A: ST30611000 (J-25742-1)B: KV31103000 (J-38982)
PDIA0811J
Tool number A: ST30611000 (J-25742-1)B: KV31103000 (J-38982)
PDIA0812J
PDIA0671E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FINAL DRIVE ASSEMBLYFFD-37
< SERVICE INFORMATION >
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15. Install selected side bearing adjusting shim (1).
16. Apply multi-purpose grease to O-ring (2), and install it to side retainer.
CAUTION:
Never reuse O-ring.
17. Install side retainer assembly to gear carrier.
18. Install side retainer mounting bolts to the specified torque. Refer to "COMPONENTS (VQ35DE MODELS)", "COMPONENTS
(VK45DE MODELS)".
19. Using the drift, press-fit side oil seal so that its surface comes face to face with the end surface of the side retainer.
CAUTION:
 Never reuse oil seal.
 When installing, never incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oilonto the circumference of oil seal.
20. Using the drift, press-fit side oil seal so that its surface comes face to face with the end surface of gear carrier.
CAUTION:
 Never reuse oil seal.
 When installing, never incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oilonto the circumference of oil seal.
21. Apply multi-purpose grease to O-ring, and install it to gear car- rier.
CAUTION:
Never reuse O-ring.
22. Check and adjust drive gear runout, tooth contact, dr ive gear to drive pinion backlash, and total preload
torque. Refer to "Drive Gear Runout", "Tooth Contact", "Backlash", "Total Preload Torque".
Recheck above items. Readjust the above description, if necessary.
PDIA0813E
PDIA0669E
Tool number A: ST33400001 (J-26082)
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Tool number A: KV38102100 (J-25803-01)
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3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-38
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
23. Apply sealant to mating surface of carrier cover.Use Genuine Silicone RTV or equivalent. Refer to GI-44,
"Recommended Chemical Product and Sealant".
CAUTION:
Remove old sealant adhering to mounting surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mounting surfaces.
24. Install carrier cover on gear carrier and tighten mounting bolts with the specified torque. Refer to "COMPONENTS (VQ35DE
MODELS)", "COMPONENT S (VK45DE MODELS)".
Side Shaft Assembly
1. Using the drift, install side shaft oil seal.
CAUTION:
 Never reuse oil seal.
 When installing, n ever incline oil seal.
 Apply multi-purpose grease onto oil seal lips, and gear oil
onto the circumference of oil seal.
2. Install dust sealed.
3. Support side shaft bearing with the drift, then press side shaft (1) into the side shaft bearing using a press.
4. Apply multi-purpose grease to O-ring, and install it to extension tube retainer.
CAUTION:
Never reuse O-ring.
PDIA0742E
SDIA1648E
Tool number A: KV38100200 ( — )
PDIA0814J
Tool number A: ST30032000 (J-26010-01)
PDIA0815J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C