Page 3049 of 4449
FFD-14
FRONT FINAL DRIVE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
ComponentsADS000NB
COMPONENTS (VQ35DE)
SDIA1588E
Page 3050 of 4449
FRONT FINAL DRIVE ASSEMBLY
FFD-15
C
E
F
G
H
I
J
K
L
MA
B
FFD
Revision: 2004 November 2004 FX35/FX45
1. Washer 2. Carrier cover 3. Gear oil defence
4. Breather joint 5. Dowel pin 6. Drive pinion height adjusting washer
7. Drive pinion 8. Drive gear 9. Side bearing adjusting washer
10. Differential case 11. Side bearing 12. O-ring
13. Front oil seal 14. Side retainer 15. Side bearing adjusting shim
16. Air breather hose 17. Bushing 18. Breather tube
19. Companion flange 20. Drive pinion bearing 21. Drive pinion bearing adjusting
washer
22. Drive pinion adjusting washer 23. Extension tube retainer 24. Dust sealed
25. Side shaft 26. Extension tube 27. Carrier case
28. Side gear thrust washer 29. Lock pin 30. Pinion mate gear
31. Pinion mate thrust washer 32. Pinion mate shaft 33. Circlip
34. Side gear 35. Filler plug 36. Drain plug
37. Drive pinion lock nut 38. Side oil seal 39. Side shaft oil seal
40. Bearing
Page 3051 of 4449
FFD-16
FRONT FINAL DRIVE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
COMPONENTS (VK45DE)
1. Washer 2. Carrier cover 3. Gear oil defence
4. Breather joint 5. Dowel pin 6. Drive pinion height adjusting washer
SDIA1644E
Page 3052 of 4449
FRONT FINAL DRIVE ASSEMBLY
FFD-17
C
E
F
G
H
I
J
K
L
MA
B
FFD
Revision: 2004 November 2004 FX35/FX45
7. Drive pinion 8. Drive gear 9. Side bearing adjusting washer
10. Differential case 11. Side bearing 12. O-ring
13. Front oil seal 14. Side retainer 15. Side bearing adjusting shim
16. Air breather hose 17. Bushing 18. Breather tube
19. Companion flange 20. Drive pinion bearing 21. Drive pinion bearing adjusting
washer
22. Drive pinion adjusting washer 23. Extension tube retainer 24. Dust sealed
25. Side shaft 26. Extension tube 27. Carrier case
28. Side gear thrust washer 29. Lock pin 30. Pinion mate gear
31. Pinion mete thrust washer 32. Pinion mate shaft 33. Circlip
34. Side gear 35. Filler plug 36. Drain plug
37. Drive pinion lock nut 38. Side oil seal 39. Side shaft oil seal
40. Bearing
Page 3053 of 4449
FFD-18
FRONT FINAL DRIVE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
Side ShaftADS000NN
BEARING AND OIL SEAL REPLACEMENT
1. Hold the extension tube retainer with commercial service tool,
then press out the side shaft using a press.
2. Remove the side shaft oil seal from the extension tube retainer
with a flat blade screwdriver.
3. Apply multi-purpose grease to the side shaft oil seal lips, the
install it into the extension tube retainer using special service
tool.
4. Support the new bearing inner race with special service tool,
then press the side shaft into the bearing using a press.
SDIA1628E
SDIA1629E
Tool number : ST19820000 ( – )
SDIA1630E
Tool number : ST30032000 ( – )
SDIA1631E
Page 3054 of 4449
FRONT FINAL DRIVE ASSEMBLY
FFD-19
C
E
F
G
H
I
J
K
L
MA
B
FFD
Revision: 2004 November 2004 FX35/FX45
EXTENSION TUBE REPLACEMENT
1. Drain engine oil. Refer to MA-17, "Changing Engine Oil" (VQ35DE) or MA-24, "Changing Engine Oil"
(VK45DE).
2. Ply out the extension tube from the engine oil sump.
3. Remove the O-rings from the extension tube and replace them
with new ones.
4. Apply grease to the new extension tube O-rings.
5. Install the extension tube into the engine oil sump.
PRE-DISASSEMBLY INSPECTION
Before disassembling the front final drive, perform the following inspection.
To ta l P r e l o a d
1. Place the front final drive onto the attachment and secure it.
2. Drain the final drive oil.
3. Remove the carrier cover.
CAUTION:
When the carrier case is damaged, replace the final drive
assembly.
SDIA1632E
SDIA1633E
SDIA1634E
SDIA1648E
Page 3055 of 4449

FFD-20
FRONT FINAL DRIVE ASSEMBLY
Revision: 2004 November 2004 FX35/FX45
4. Turn the companion flange in both direction 20 times or more to
seat the bearing rollers.
5. Check total preload with special service tool.
If the preload value is out of standard, adjust pinion bearing
preload and side bearing preload.
Drive Gear to Drive Pinion Gear Backlash
Set the dial indicator to the drive gear face and measure the back-
lash.
If the measured value is out of standard, adjust the backlash by
replacing the side bearing adjusting shim (differential case side).
If the backlash too large, decrease side bearing adjusting shim
thickness.
If the backlash too small, increase side bearing adjusting shim
thickness.
Drive Gear Runout
1. Set dial gauge to behind the drive gear and measure the ring gear runout.
a. If the runout is exceed limit, check for drive gear assembly:
any object between the drive gear and differential case
deformed differential case
deformed drive gear
b. If drive gear is deformed, replace the drive gear and pinion gear as a set. If the differential case is
deformed, replace the differential case.
Companion Flange Runout
1. Set the dial gauge to the companion flange face and measure
runout.
2. Set the dial gauge to the inside face of the companion flange
and measure the runout.
CAUTION:
Clean inside face of companion flange before measuring
runout.
a. If runout is out side limit, remove the companion from the drive
pinion. Turn the companion flange position 90° each, and measure the runout again.
b. If runout valve still out side of the limit, replace companion flange.Tool number : ST3127S000 (see J25765-A)
Total preload : 1.56 - 2.65 N·m
(0.16 - 0.27 kg-m, 14 - 23 in-lb)
SDIA1649E
If the preload value too large : Decrease the drive pinion bearing adjusting washer thickness.
: Decrease the drive pinion adjusting washer thickness.
: Increase the side bearing adjusting shim thickness.
If the preload value too small : Increase the drive pinion bearing adjusting washer thickness.
: Increase the drive pinion adjusting washer thickness.
: Decrease the side bearing adjusting shim thickness.
Standard drive gear backlash
: 0.10 - 0.15 mm(0.0039 - 0.0059) in
SDIA0009J
Runout limit : 0.05 mm (0.0020 in) or less
Runout limit : 0.18 mm (0.007 in) or less
Runout limit : 0.13 mm (0.005 in) or less
SDIA1651E
Page 3056 of 4449
FRONT FINAL DRIVE ASSEMBLY
FFD-21
C
E
F
G
H
I
J
K
L
MA
B
FFD
Revision: 2004 November 2004 FX35/FX45
c. If runout valve still out side of limit after replacing companion flange, check pinion bearing and drive pinion
assembly, and pinion bearing damage.
Tooth Contact
Check tooth contact. Refer to FFD-30, "TOOTH CONTACT INSPECTION" .
DISASSEMBLY AND ASSEMBLY
REMOVAL OF DRIVE GEAR AND DIFFERENTIAL CASE ASSEMBLY
1. Remove the side retainer mounting bolt.
2. Remove the retainer by pulling it and tapping carrier case using a plastic hammer.
3. Remove the differential case assembly from the carrier case.
CAUTION:
Be careful not to damage the carrier cover mating surface.
4. Remove the side bearing outer race using puller.
5. Keep the side bearing outer races together with inner race. Do
not mix them up. Also, keep adjusting washers together with
bearings.
6. Drive out the side oil seals from the carrier case.
SDIA1656E
SDIA0181J