Page 1249 of 4083
![INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-219
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
7. For proper reinstallation, paint matching marks on one side of the side bearing cap INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-219
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
7. For proper reinstallation, paint matching marks on one side of the side bearing cap](/manual-img/42/57030/w960_57030-1248.png)
FRONT FINAL DRIVEDLN-219
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
7. For proper reinstallation, paint matching marks on one side of the side bearing cap and gear carrier.
CAUTION:
• For matching marks, use paint. Do not damage side bear-ing cap or gear carrier.
• Side bearing caps are line-boa rd during manufacture. The
matching marks are used to re install them in their original
positions.
8. Remove the side bearing caps.
9. Remove the side bearing adjuster.
10. Lift the differential case assembly out of the gear carrier. CAUTION:
Keep side bearing outer races together with side bearing
inner races. Do not mix them up.
11. Remove side bearing inner race using Tools as shown. CAUTION:
• Do not remove side bearing inner race unless it is being
replaced.
• Place copper plates between th e vise and the side bearing
inner race and drive gear to prevent damage.
• Engage puller jaws in groove to prevent damage to bear- ing.
PDIA0700E
PDIA0701E
SDIA2230E
SPD527
Tool number A: ST33081000 ( — )
B: ST30021000 ( — )
SDIA2237E
Revision: March 2010 2008 QX56
Page 1250 of 4083
DLN-220
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
• Keep side bearing outer races together with side bearing
inner races. Do not mix them up.
12. For proper reinstallation, paint matching marks on the differential
case and drive gear.
CAUTION:
Use paint for matching marks. Do not damage differential
case or drive gear.
13. Remove the drive gear bolts.
14. Tap the drive gear off the differential case using suitable tool. CAUTION:
Tap evenly all around to keep drive gear from bending.
15. Remove the lock pin of the pinion mate shaft from the drive gear side using suitable tool.
16. Remove the pinion mate shaft.
17. Turn the pinion mate gear, then remove the pinion mate gear, pinion mate thrust washer, side gear and side gear thrust
washer from the differential case.
SPD022
PDIA0496E
SPD025
SDIA0031J
SDIA0032J
Revision: March 2010 2008 QX56
Page 1251 of 4083
FRONT FINAL DRIVEDLN-221
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
Drive Pinion Assembly
1. Remove the differential assembly. Refer to "Differential Assembly".
2. Remove the drive pinion lock nut using Tool.
3. Put matching marks on the companion flange and drive pinion
using paint.
CAUTION:
Use paint to make the matching marks. Do not damage the
companion flange or drive pinion.
4. Remove the companion flange using suitable tool.
5. Press the drive pinion assembly (with rear inner bearing race and collapsible spacer) out of the gear carrier.
CAUTION:
Do not drop drive pinion assembly.
6. Remove the drive pinion rear bearing inner race and drive pinion height adjusting washer using Tool.Tool number : KV38108300 (J-44195)
PDIA0702E
PDIA0703E
SDIA2234E
Tool number : ST30021000 ( — )
S-PD179
Revision: March 2010
2008 QX56
Page 1252 of 4083
![INFINITI QX56 2008 Factory Service Manual DLN-222
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
7. Place a small hole in the front oil seal case using suitable tool.
8. Remove the front oil seal using Tool as shown.
INFINITI QX56 2008 Factory Service Manual DLN-222
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
7. Place a small hole in the front oil seal case using suitable tool.
8. Remove the front oil seal using Tool as shown.](/manual-img/42/57030/w960_57030-1251.png)
DLN-222
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
7. Place a small hole in the front oil seal case using suitable tool.
8. Remove the front oil seal using Tool as shown.
9. Remove the drive pinion front bearing inner race.
10. Remove the drive pinion front bearing outer race using Tool as
shown. Locate the driver on the back edge of the drive pinion
front bearing outer race, then drive the drive pinion front bearing
outer race out.
CAUTION:
Do not damage gear carrier.
11. Remove the drive pinion rear bearing outer race using Tool as shown. Locate the driver on the back edge of the drive pinion
rear bearing outer race, then drive the drive pinion rear bearing
outer race out.
CAUTION:
Do not damage gear carrier.
INSPECTION AFTER DISASSEMBLY
Clean the disassembled parts. Then inspect the parts for wear or damage. If wear or damage are found, follow
the measures below.
Drive Pinion and Drive Gear
• If the drive pinion and drive gear teeth do not mesh or line-up correctly, determine the cause and adjust,
repair, or replace as necessary.
• If the drive pinion or drive gear are worn, crack ed, damaged, pitted or chipped (by friction) noticeably,
replace with new drive pinion and drive gear.
LDIA0129E
Tool number : SP8P
LDIA0130E
Tool number A: C-4171
B: D-103
LDIA0131E
Tool number A: C-4171B: C-4307
LDIA0132E
Revision: March 2010 2008 QX56
Page 1253 of 4083
![INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-223
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
• Drive pinion and drive gear are supplied in matched sets only. Matching numbers on INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-223
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
• Drive pinion and drive gear are supplied in matched sets only. Matching numbers on](/manual-img/42/57030/w960_57030-1252.png)
FRONT FINAL DRIVEDLN-223
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
• Drive pinion and drive gear are supplied in matched sets only. Matching numbers on both drive pinion and drive gear are etched for verification. If a new drive pinion and drive gear set are being used, verify the num-
bers of each drive pinion and drive gear before proceeding with assembly.
Bearing
• If bearings are chipped (by friction), pitted, worn, rusted, scratched, or unusual noise is coming from bearing,
replace with new bearing assembly (as a new set).
• Bearing must be replaced with a new one whenever disassembled.
Side Gear and Pinion Mate Gear
• If any cracks or damage are found on the surface of the teeth, replace with new one.
• If any worn or chipped marks are found on the side of the side gear and pinion mate gear which contact the
thrust washer, replace with new one.
• Replace both side gear and pinion mate gear as a set when replacing side gear or pinion mate gear.
Side Gear Thrust Washer and Pinion Mate Thrust Washer
• If any chips (by friction), damage, or unus ual wear are found, replace with new one.
Gear Carrier
• If any wear or cracks are found on the contac t sides of gear carrier, replace with new one.
Companion Flange
• If any chips (about 0.1mm, 0.004 in) or other damage on the companion flange surface which contacts the
front oil seal lips are found, replace with new one.
ADJUSTING AND SELECTING WASHERS
Side Gear Back Clearance
• Assemble the differential parts if they are disassembled. Refer to "Differential Assembly".
1. Place the differential case straight up so that the side gear to be measured is upward.
PDIA0460E
Revision: March 2010 2008 QX56
Page 1254 of 4083
![INFINITI QX56 2008 Factory Service Manual DLN-224
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
2. Using feeler gauges, measure the clearance between the side
gear back and differential case at three different points INFINITI QX56 2008 Factory Service Manual DLN-224
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
2. Using feeler gauges, measure the clearance between the side
gear back and differential case at three different points](/manual-img/42/57030/w960_57030-1253.png)
DLN-224
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
2. Using feeler gauges, measure the clearance between the side
gear back and differential case at three different points, while
rotating the side gear. Average the three readings to calculate
the clearance. (Measure the clearance of the other side as well.)
• If the side gear back clearance is outside of the specification,use a thicker or thinner side gear thrust washer to adjust.
Refer to DLN-231, "
Inspection and Adjustment".
CAUTION:
• Insert feeler gauges with the same thickness on both sides to prevent side gear from tilting.
• Each gear should rotate smoothly without excessive resistance during differential motion.
• Select a side gear thrust wash er for right and left individu-
ally.
NOTE:
Side gear back clearance is clearance between side gear and differential case for adjusting side gear
backlash.
Drive Pinion Height
• Drive gear and drive pinion are supplied in matched sets only. Matching numbers on both drive pinion and drive gear are etched
for verification. If a new gear set is being used, verify the numbers
of each drive pinion and drive gear before proceeding with assem-
bly.
• The mounting distance from the centerline of the drive gear to the back face of the drive pinion for the M205
final drive assembly is 103.5 mm (4.0748 inches).
On the button end of each drive pinion, there is etched a plus (+) number, a minus (-) number, or a zero (0),
which indicates the best running position for each partic ular gear set. This dimension is controlled by a
selective drive pinion height adjusting washer between the drive pinion rear bearing inner race and drive pin-
ion.
For example: If a drive pinion is etched m+8 (+3), it would require 0.08 mm (0.003 inch) less drive pinion
height adjusting washer than a drive pinion etched “0”. This means decreasing drive pinion height adjusting
washer thickness; increases the mounting distance of the drive pinion to 103.6 mm (4.0778 inches). If a
drive pinion is etched m-8 (-3), it would require addi ng 0.08mm (0.003 inch) more to the drive pinion height
adjusting washer than would be required if the drive pinion were etched “0”. By adding 0.08 mm (0.003 inch),
the mounting distance of the drive pinion was decreased to 103.4 mm (4.0718 inches) which is just what a
m-8 (-3) etching indicated.
• To change the drive pinion height, use different drive pi nion height adjusting washers which come in different
thickness.
• Use the following tables as a guide for selecting the correct drive pinion height adjusting washer thickness to add or subtract from the old drive pinion height adjusting washer. Side gear back clearance: 0.20 mm (0.0079 in) or less
If the side gear back clearance is greater than
specification:
Use a thicker side gear thrust washer.
If the side gear back clearance is less than spec-
ification: Use a thinner side gear thrust washer.
PDIA0576E
SDIA2241E
Revision: March 2010 2008 QX56
Page 1255 of 4083
![INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-225
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
ASSEMBLY
Drive Pinion Assembly
1. Install drive pinion rear bearing outer race using To INFINITI QX56 2008 Factory Service Manual FRONT FINAL DRIVEDLN-225
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
ASSEMBLY
Drive Pinion Assembly
1. Install drive pinion rear bearing outer race using To](/manual-img/42/57030/w960_57030-1254.png)
FRONT FINAL DRIVEDLN-225
< DISASSEMBLY AND ASSEMBLY > [FRONT FINAL DRIVE: M205]
C
EF
G H
I
J
K L
M A
B
DLN
N
O P
ASSEMBLY
Drive Pinion Assembly
1. Install drive pinion rear bearing outer race using Tools.
2. Install drive pinion front bearing outer race using Tools.
3. Select drive pinion height adjusting washer. Refer to DLN-231, "
Inspection and Adjustment"".
OLD DRIVE
PINION
MARKING NEW DRIVE PINION MARKING mm (in)
-10 (-4) -8 (-3) -5 (-2) -3 (-1) 0 (0) + 3 (+1) +5 (+2) +8 (+3) +10 (+4)
+10 (+4) +0.20
(+0.008) +0.18
(+0.007) +0.15
(+0.006) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0)
+8 (+3) +0.18
(+0.007) +0.15
(+0.006) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001)
+5 (+2) +0.15
(+0.006) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002)
+3 (+1) +0.13
(+0.005) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003)
0 (0) +0.10
(+0.004) +0.08
(+0.003) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004)
-3 (-1) +0
.08
(+0. 00
3)+0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005)
-5 (-2) +0.05
(+0.002) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005) -0.15
(-0.006)
-8 (-3) +0.02
(+0.001) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005) -0.15
(-0.006) -0.18
(-0.007)
-10 (-4) 0
(0) -0.02
(-0.001) -0.05
(-0.002) -0.08
(-0.003) -0.10
(-0.004) -0.13
(-0.005) -0.15
(-0.006) -0.18
(-0.007) -0.20
(-0.008)
Tool number A: ST30901000 ( — )
B: KV40105230 ( — )
SDIA2251E
Tool number A: ST35271000 ( — )B: KV40104810 ( — )
SDIA2252E
Revision: March 2010 2008 QX56
Page 1256 of 4083
![INFINITI QX56 2008 Factory Service Manual DLN-226
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
4. Install the selected drive pinion height adjusting washer to the
drive pinion. Press the drive pinion rear bearing in INFINITI QX56 2008 Factory Service Manual DLN-226
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
4. Install the selected drive pinion height adjusting washer to the
drive pinion. Press the drive pinion rear bearing in](/manual-img/42/57030/w960_57030-1255.png)
DLN-226
< DISASSEMBLY AND ASSEMBLY >[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
4. Install the selected drive pinion height adjusting washer to the
drive pinion. Press the drive pinion rear bearing inner race to it
using Tool.
CAUTION:
Do not reuse drive pinion rear bearing inner race.
5. Install the collapsible spacer to the drive pinion. CAUTION:
Do not reuse collapsible spacer.
6. Apply differential gear oil to the drive pinion rear bearing, and install the drive pinion assembly to the gear carrier.
7. Apply differential gear oil to the drive pinion front bearing, and install the drive pinion front bearing inner race to the drive pinion
assembly.
CAUTION:
Do not reuse drive pinion front bearing inner race.
8. Apply multi-purpose grease to the lips of the new front oil seal. Then drive the new front oil seal in evenly using Tools.
CAUTION:
• Do not reuse front oil seal.
• Do not incline the new front oil seal when installing.
• Apply multi-purpose grease to the lips of the new front oilseal.
9. Install the companion flange to the drive pinion while aligning the matching marks. Tap the companion flange until fully seated
using suitable tool.Tool number : C-4040
SDIA2253E
PDIA0708E
Tool number A: ST35271000 ( — )
B: KV40104810 ( — )
PDIA0717E
SDIA2266E
Revision: March 2010 2008 QX56