2007 INFINITI FX35 final drive

FFD-14
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45

Tighten mounting bolts in the order as described below when
installing front final drive assembly: side of gear carrier (1),
upper side of gear carrier (2), part of carrier cover (3), lower part
of gear carrier (4).
CAUTION:
Align the mating faces of gear carrier and oil pan for instal-
lation.

When installing breather hoses (1) and tube (2), refer to the fig-
ure.
CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when install-
ing it.
–Make sure the paint mark facing up ( ).
–Securely install the hose until it seats the rounded portion of the
tube ( ).
–Install breather connector as shown in the figure.
–Seat the breather tube bracket end (A) to the machined face (B)
of gear carrier boss.

When oil leaks while removing final drive assembly, check oil
level after the installation. Refer to FFD-8, "
Changing Differential
Gear Oil" .
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Angle “A”: 0 - 30°
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FRONT FINAL DRIVE ASSEMBLY FFD-15
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FFD
Revision: 2006 July 2007 FX35/FX45
Removal and Installation (VK45DE Models)NDS000BD
COMPONENTS
REMOVAL
1. Remove three way catalyst (right bank). Refer to EM-183, "EXHAUST MANIFOLD AND THREE WAY
CATALYST" .
2. Remove stabilizer assembly with power tool. Refer to FSU-16, "
STABILIZER BAR" .
3. Remove steering gearbox mounting bolts with power tool. Refer to PS-18, "
POWER STEERING GEAR
AND LINKAGE" .
4. Remove front drive shaft both. Refer to FA X - 1 2 , "
FRONT DRIVE SHAFT" .
5. Remove side shaft assembly.
6. Remove front propeller shaft. Refer to PR-4, "
FRONT PROPELLER SHAFT" .
7. Remove front suspension member with power tool. Refer to FSU-17, "
FRONT SUSPENSION MEMBER" .
8. Remove engine wire harness clamp bolts from front final drive.
9. Remove breather hose and tube.
10. Remove mounting bolts and remove front final drive assembly from the vehicle.
INSTALLATION
Note the following, and installation is in the reverse order of removal.

Refer to FFD-15, "COMPONENTS" about each tightening torque.

When installing side shaft, apply multi-purpose grease to contact surface of side shaft and side shaft oil
seal.
1. Front final drive assembly 2. Side shaft 3. Bushing
4. Front propeller shaft 5. Breather tube 6. Breather hose
7. Breather connector 8. Harness bracket
PDIA0659E

FFD-16
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45

Tighten mounting bolts in the order as described below when
installing front final drive assembly: upper side of gear carrier
(1), part of carrier cover (2), lower part of gear carrier (3).
CAUTION:
Align the mating faces of gear carrier and oil pan for instal-
lation.

When installing breather hoses and tube, refer to the figure.
CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when install-
ing it.

Install breather connector as shown in the figure.

When oil leaks while removing final drive assembly, check oil
level after the installation. Refer to FFD-8, "
Checking Differential
Gear Oil" .
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Angle “A”: 22.5°
“B”: 22.5 - 45 °
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FRONT FINAL DRIVE ASSEMBLY FFD-17
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FFD
Revision: 2006 July 2007 FX35/FX45
Disassembly and AssemblyNDS000CS
COMPONENTS (VQ35DE MODELS)
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Drive pinion bearing adjusting washer 6. Drive pinion adjusting washer
7. Gear carrier 8. Pinion rear bearing 9. Pinion height adjusting washer
10. Drive pinion 11. Drive gear 12. Side oil seal (right side)
13. Side retainer 14. O-ring 15. Side bearing adjusting shim
16. Side bearing 17. Differential case 18. Breather connector
19. Dowel pin 20. Filler plug 21. Drain plug
22. Gasket 23. Carrier cover 24. Gear oil defence
25. Side gear thrust washer 26. Side gear 27. Circular clip
28. Pinion mate thrust washer 29. Pinion mate gear 30. Pinion mate shaft
31. Lock pin 32. Side bearing adjusting washer 33. Side oil seal (left side)
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FFD-18
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
34. Side shaft bearing 35. Extension tube retainer 36. Side shaft oil seal
37. Dust sealed 38. Side shaft
A: Oil seal lip
B: Screw hole
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
: Apply multi-purpose grease.
: Apply gear oil.
: Apply anti-corrosion oil.
: Apply Genuine Silicone RTV or equivalent. Refer to
GI-48, "
Recommended Chemical Products and Sealants" .
: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to
GI-48, "
Recommended Chemical
Products and Sealants" .

FRONT FINAL DRIVE ASSEMBLY FFD-19
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Revision: 2006 July 2007 FX35/FX45
COMPONENTS (VK45DE MODELS)
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Drive pinion bearing adjusting washer 6. Drive pinion adjusting washer
7. Gear carrier 8. Pinion rear bearing 9. Pinion height adjusting washer
10. Drive pinion 11. Drive gear 12. Side oil seal (right side)
13. Side retainer 14. O-ring 15. Side bearing adjusting shim
16. Side bearing 17. Differential case 18. Breather connector
19. Dowel pin 20. Filler plug 21. Drain plug
22. Gasket 23. Carrier cover 24. Gear oil defence
25. Side gear thrust washer 26. Side gear 27. Circular clip
28. Pinion mate thrust washer 29. Pinion mate gear 30. Pinion mate shaft
31. Lock pin 32. Side bearing adjusting washer 33. Side oil seal (left side)
34. Side shaft bearing 35. Extension tube retainer 36. Side shaft oil seal
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FFD-20
FRONT FINAL DRIVE ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
ASSEMBLY INSPECTION AND ADJUSTMENT

Before inspection and adjustment, drain gear oil.
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 opera- tion of the bearing.
3. Measure total preload with preload gauge.
NOTE:
Total preload torque = Pinion bearing preload torque + Side
bearing preload torque

If measured value is out of the specification, disassemble it to
check and adjust each part. Adjust the pinion bearing preload and side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.
37. Dust sealed 38. Side shaft
A: Oil seal lip
B: Screw hole
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
: Apply multi-purpose grease.
: Apply gear oil.
: Apply anti-corrosion oil.
: Apply Genuine Silicone RTV or equivalent. Refer to
GI-48, "
Recommended Chemical Products and Sealants" .
: Apply Genuine Medium Strength Thread Locking Sealant or equivalent. Refer to
GI-48, "
Recommended Chemical
Products and Sealants" .
Tool number A: ST3127S000 (J-25765-A)
Total preload torque:
1.56 - 2.65 N·m (0.16 - 0.27 kg-m, 14 - 23 in-lb)
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When the preload torque is largeOn pinion bearings: Decrease the drive pinion bearing adjusting washer and drive pinion adjusting washer thickness. Refer to FFD-40, "
Drive Pinion Bearing
Adjusting Washer" and FFD-40, "Drive Pinion Adjusting Washer" .
On side bearings: Increase the side bearing adjusting shim thickness. Refer to FFD-40,
"Side Bearing Adjusting Shim" .
When the preload torque is small On pinion bearings: Increase the drive pinion bearing adjusting washer and drive pinion adjusting washer thickness. Refer to FFD-40, "
Drive Pinion Bearing
Adjusting Washer" and FFD-40, "Drive Pinion Adjusting Washer" .
On side bearings: Decrease the side bearing adjusting shim thickness. Refer to FFD-40,
"Side Bearing Adjusting Shim" .

FRONT FINAL DRIVE ASSEMBLY FFD-21
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FFD
Revision: 2006 July 2007 FX35/FX45
Drive Gear Runout
1. Remove carrier cover. Refer to FFD-34, "Differential Assembly" .
2. Fit a dial indicator to the drive gear back face.
3. Rotate the drive gear to measure runout.

If the runout is outside of the repair limit, check drive gear
assembly condition; foreign material may be caught between
drive gear and differential case, or differential case or drive gear
may be deformed, etc.
CAUTION:
Replace drive gear and drive pinion gear as a set.
Tooth Contact
1. Remove carrier cover. Refer to FFD-34, "Differential Assembly" .
2. Apply red lead to drive gear. CAUTION:
Apply red lead to both the faces of 3 to 4 gears at 4 loca-
tions evenly spaced on drive gear.
3. Rotate drive gear back and forth several times, check drive pin- ion gear to drive gear tooth contact.
CAUTION:
Check tooth contact on drive side and reverse side. Runout limit: 0.05 mm (0.0020 in)
SPD886
SPD357
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