2005 INFINITI FX35 height

FFD-16
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
Disassembly and AssemblyADS0019Y
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)
PDIA0662E

FFD-18
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
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)
PDIA0663E

FFD-22
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
4. If tooth contact is improperly adjusted, follow the procedure
below to adjust the pinion height (dimension X).
PDIA0667E
SDIA0517E

FRONT FINAL DRIVE ASSEMBLY FFD-23
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FFD
Revision: 2005 July 2005 FX

If the tooth contact is near the face (face contact), or near the
heel (heel contact), thicken pinon height adjusting washers to
move drive pinion closer to drive gear.
Refer to FFD-40, "
Pinion Height Adjusting Washer" .

If the tooth contact is near the flank (flank contact), or near the
toe (toe contact), thin pinion height adjusting washers to move
drive pinion farther from drive gear.
Refer to FFD-40, "
Pinion Height Adjusting Washer" .
Backlash
1. Remove carrier cover. Refer to FFD-24, "Differential Assembly" .
2. Fit a dial indicator to the drive gear face to measure the back- lash.

If the backlash is outside of the specified value, change the
thickness of side bearing adjusting washer.
Companion Flange Runout
1. Fit a dial indicator onto the companion flange face (inner side of
the propeller shaft mounting bolt holes).
2. Rotate companion flange to check for runout.
3. Fit a test indicator to the inner side of companion flange (socket diameter).
4. Rotate companion flange to check for runout.
5. If the runout value is outside the runout limit, follow the proce- dure below to adjust.
a. Check for runout while changing the phase between companion flange and drive pinion by 90 ° step, and
search for the position where the runout is the minimum.
b. If the runout value is still outside of the limit after the phase has been changed, possible cause will be an assembly malfunction of drive pinion and pinion bearing and malfunction of pinion bearing. Check for
these items and repair if necessary.
PDIA0440E
PDIA0441E
Backlash: 0.10 - 0.15 mm (0.0039 - 0.0059 in)
When the backlash is large: Decrease side bearing adjusting washer thickness.
Refer to FFD-40, "
Side Bearing Adjusting Washer" .
When the backlash is small: Increase side bearing adjusting washer thickness.
Refer to FFD-40, "
Side Bearing Adjusting Washer" .
SDIA0009J
Runout limit: 0.18 mm (0.0070 in) or less
Runout limit: 0.13 mm (0.0051 in) or less
PDIA0646E

FFD-28
FRONT FINAL DRIVE ASSEMBLY
Revision: 2005 July 2005 FX
5. Press drive pinion assembly out of gear carrier.
CAUTION:
Do not drop drive pinion assembly.
6. Remove front oil seal.
7. Remove pinion front bearing inner race.
8. Remove drive pinion bearing adjusting washer and drive pinion adjusting washer.
9. Remove pinion rear bearing inner race and drive pinion height adjusting washer with replacer.
10. Tap pinion front/rear bearing outer races uniformly a brass rod or equivalent to removed.
CAUTION:
Be careful not to damage gear carrier.
INSPECTION AFTER DISASSEMBLY
Clean up the disassembled parts. Then, inspect if the parts are worn or damaged. If so, follow the measures
below.
PDIA0676E
Tool number : ST30031000 (J-22912-01)
S-PD179
PDIA0677E
Content Conditions and Measures
Hypoid gear

If the gear teeth do not mesh or line-up correctly, determine the cause and adjust or replace as nec-
essary.

If the gears are worn, cracked, damaged, pitted or chipped (by friction) noticeably, replace with new
drive gear and drive pinion as a set.
Bearing

If any chipped (by friction), pitted, worn, rusted or scratched mark, or unusual noise from the bearing
is observed, replace as a bearing assembly (as a new set).
Side gear and Pinion mate
gear

If any cracks or damage on the surface of the tooth is found, replace.

If any worn or chipped mark on the contact sides of the thrust washer is found, replace.
Side gear thrust washer and
pinion mate thrust washer

If it is chipped (by friction), damaged, or unusually worn, replace.
Oil seal

Whenever disassembled, replace.

If wear, deterioration of adherence (sealing force lips), or damage is detected on the lips, replace
them.
Differential case

If any wear or crack on the contact sides of the differential case is found, replace.
Companion flange

If any chipped mark (about 0.1 mm, 0.004 in) or other damage on the contact sides of the lips of the
companion flange is found, replace.

FRONT FINAL DRIVE ASSEMBLY FFD-31
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FFD
Revision: 2005 July 2005 FX
9. If the turning torque is outside the specification, use a thicker/
thinner side bearing adjusting shim to adjust. Refer to FFD-40,
"Side Bearing Adjusting Shim" .
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, select the pinion height adjusting washer.
1. Substitute these values into the equation to calculate the thick- ness of the washer.
2. Select the proper pinion height adjusting washer. Refer to FFD-40, "
Pinion Height Adjusting Washer" .
If you cannot find the desired thickness of washer, use washer with thickness closest to the calculated
value.
Pinion Bearing Preload

Assemble the drive pinion parts if they are disassembled. Refer to FFD-32, "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. NOTE:
When reusing drive pinion, align the matching mark of drive pin-
ion with the matching mark A of companion flange, then install
companion flange. If the turning torque is less than the specified range:
Decrease the side bearing adjusting shim thickness.
If the turning torque is greater 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
SDIA0249J
PDIA0675E

FRONT FINAL DRIVE ASSEMBLY FFD-33
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FFD
Revision: 2005 July 2005 FX
2. Temporarily install pinion height adjusting washer.
When hypoid gear set has been replaced

Select pinion height adjusting washer. Refer to FFD-31, "Pin-
ion 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 drive pinion height adjusting washer to drive pin- ion. Press pinion rear bearing inner race to it, using drift.
CAUTION:

Pay attention to the direction of pinion height adjusting
washer. (Assemble as shown in the figure.)

Do not 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:
Do not reuse pinion front bearing inner race.
7. Using suitable spacer, press the pinion front bearing inner race to drive pinon 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 FFD-31, "
Pinion Bearing Preload" .
9. Using the drift, install front oil seal as shown in figure. CAUTION:

Do not reuse oil seal.

When installing, do not incline oil seal.

Apply multi-purpose grease onto oil seal lips, and gear
oil onto the circumference of oil seal.
SDIA1666E
Tool number : ST30032000 (J-26010-01)
SDIA0048E
PDIA0681E
PDIA0682E
Tool number A: ST33400001 (J-26082)
B: KV38102510 ( — )
PDIA0683E

FFD-40
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2005 July 2005 FX
Pinion Height Adjusting Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Drive Pinion Bearing Adjusting Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Drive Pinion Adjusting Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Side Bearing Adjusting Shim
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information.
Side Bearing Adjusting Washer
Unit: mm (in)
*: Always check with the Parts Department for the latest parts information. Thickness Part number* Thickness Part number*
3.09 (0.1217)
3.12 (0.1228)
3.15 (0.1240)
3.18 (0.1252)
3.21 (0.1264)
3.24 (0.1276)
3.27 (0.1287)
3.30 (0.1299)
3.33 (0.1323)
3.36 (0.1323) 38154 U1500
38154 U1501
38154 U1502
38154 U1503
38154 U1504
38154 U1505
38154 U1506
38154 U1507
38154 U1508
38154 U1509 3.39 (0.1335)
3.42 (0.1346)
3.45 (0.1358)
3.48 (0.1370)
3.51 (0.1382)
3.54 (0.1394)
3.57 (0.1406)
3.60 (0.1429)
3.63 (0.1429)
3.66 (0.1441) 38154 U1510
38154 U1511 38154U1512
38154 U1513
38154 U1514
38154 U1515
38154 U1516
38154 U1517
38154 U1518
38154 U1519
Thickness Part number* Thickness Part number*
3.81 (0.1500)
3.83 (0.1508)
3.85 (0.1516)
3.87 (0.1524)
3.89 (0.1531)
3.91 (0.1539)
3.93 (0.1547)
3.95 (0.1555) 38125 61001
38126 61001
38127 61001
38128 61001
39129 61001
38130 61001
38131 61001
38132 61001 3.97 (0.1563)
3.99 (0.1571)
4.01 (0.1579)
4.03 (0.1587)
4.05 (0.1594)
4.07 (0.1602)
4.09 (0.1610) 38133 61001
38134 61001
38135 61001
38136 61001
38137 61001
38138 61001
38139 61001
Thickness Part number* Thickness Part number*
5.19 (0.2043)
5.49 (0.2161)
5.79 (0.2280) 38151 AR000
38151 AR001
38151 AR002 6.09 (0.2398)
6.39 (0.2516) 38151 AR003
38151 AR004
Thickness Part number* Thickness Part number*
0.20 (0.0079)
0.25 (0.0098)
0.30 (0.0118) 38453 AR000
38453 AR001
38453 AR002 0.40 (0.0157)
0.50 (0.0197) 38453 AR003
38453 AR004
Thickness Part number* Thickness Part number*
0.10 (0.0040)
0.12 (0.0047)
0.15 (0.0059)
0.17 (0.0067)
0.20 (0.0079) 38453 AR010
38453 AR011
38453 AR012
38453 AR013
38453 AR014 0.25 (0.0098)
0.30 (0.0118)
0.40 (0.0157)
0.50 (0.0197) 38453 AR015
38453 AR016
38453 AR017
38453 AR018