Infiniti Q45 (FY33). Manual — part 507
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PROPELLER SHAFT &
DIFFERENTIAL CARRIER
CONTENTS
PREPARATION . . . . . . . . . . . . . . . . 2
Special Service Tools . . . . . . . . . . . . ..2
Commercial Service Tool. . . . . . . . . . . .4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING . . . . . . . . . . . . . .5
NVH Troubleshooting Chart. . . . . . . . . . .5
PROPELLER SHAFT . . . . . . . . . . . . . ..6
On-vehicle Service. . . . . . . . . . . . . ...6
Removal. . . . . . . . . . . . . . . . . ...6
Installation. . . . . . . . . . . . . . . . . 7
Inspection. . . . . . . . . . . . . . . . . .8
Disassembly. . . . . . . . . . . . . . . . .8
Assembly . . . . . . . . . . . . . . . . . .9
ON-VEHICLE SERVICE/REMOVAL AND
INSTALLATION. . . . . . . . . . . . . . . .. 11
Front Oil Seal Replacement . . . . . . . . . .. 11
Side Oil Seal Replacement . . . . . . . . . ... 11
Removal. . . . . . . . . . . . . . . . . .12
Installation. . . . . . . . . . . . . . . . ..12
FINAL DRIVE. . . . . . . . . . . . . . . . .13
DISASSEMBLY. . . . . . . . . . . . . . . ..14
Pre-inspection . . . . . . . . . . . . . . . 14
Differential Carrier. . . . . . . . . . . . . ..14
Differential Case . . . . . . . . . . . . . . 16
INSPECTION. . . . . . . . . . . . . . . . ..18
Contact Surfaces . . . . . . . . . . . . . ...18
Bearing. . . . . . . . . . . . . . . . . ...18
ADJUSTMENT . . . . . . . . . . . . . . . ...19
Differential Case . . . . . . . . . . . . . . 19
Side Bearing Preload. . . . . . . . . . . . .20
Pinion Gear Height and Pinion Bearing Preload. ...21
Tooth Contact. . . . . . . . . . . . . . . .26
ASSEMBLY. . . . . . . . . . . . . . . . . 27
SERVICE DATA AND SPECIFICATIONS (SDS) . . ..31
Propeller Shaft . . . . . . . . . . . . . . ...31
Final Drive. . . . . . . . . . . . . . . . ..31
GI
MA
EM
LC
EC
FE
AT
FA
RA
BR
ST
RS
BT
HA
EL
IDX
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Special Service Tools
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
KV38104700
(J34311)
Drive pinion flange
wrench
NT355
Removing and installing propeller shaft lock
nut, and drive pinion lock nut
a: 95 mm (3.74 in)
KV38100800
(
—
)
Equivalent tool
(J25604-01)
Differential
attachment
NT119
Mounting final drive
(To use, make a new hole.)
a: 156 mm (6.14 in)
ST3090S000
(
—
)
Drive pinion rear inner
race puller set
q
1
ST30031000
(J22912-01)
Puller
q
2
ST30901000
(
—
)
Equivalent tool
(J26010-01)
Base
NT640
Removing and installing drive pinion rear
cone
a: 90 mm (3.54 in) dia.
b: 80 mm (3.15 in) dia.
c: 50 mm (1.97 in) dia.
d: 79 mm (3.11 in) dia.
e: 45 mm (1.77 in) dia.
f: 35 mm (1.38 in) dia.
ST3306S001
(
—
)
Differential side
bearing puller set
q
1
ST3305S001
(
—
)
Equivalent tool
(J22888-20)
Body
q
2
ST33061000
(J8107-2)
Equivalent tool
(J26010-01)
Adapter
NT072
Removing and installing differential side bear-
ing inner cone
a: 28.5 mm (1.122 in) dia.
b: 38 mm (1.50 in) dia.
ST30611000
(J25742-1)
Drift
NT090
Installing pinion rear bearing outer race
(Use with ST30613000)
PREPARATION
PD-2
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Tool number
(Kent-Moore No.)
Tool name
Description
ST30613000
(J25742-3)
Drift
NT073
Installing pinion front bearing outer race
(Use with ST30611000)
a: 72 mm (2.83 in) dia.
b: 48 mm (1.89 in) dia.
KV38100200
(J26233)
Gear carrier side
oil seal drift
NT115
Installing side oil seal
a: 65 mm (2.56 in) dia.
b: 49 mm (1.93 in) dia.
KV38100500
(
—
)
Gear carrier front
oil seal drift
NT115
Installing front oil seal
a: 85 mm (3.35 in) dia.
b: 60 mm (2.36 in) dia.
KV38100300
(J25523)
Differential side
bearing inner cone
NT085
Installing side bearing inner cone
a: 54 mm (2.13 in) dia.
b: 46 mm (1.81 in) dia.
c: 32 mm (1.26 in) dia.
KV38100600
(J25267)
Side bearing spacer
drift
NT528
Installing side bearing spacer
a: 8 mm (0.31 in)
b: R42.5 mm (1.673 in)
ST3127S000
(See J25765-A)
Preload gauge
q
1
GG91030000
(J25765)
Torque wrench
q
2
HT62940000
(
—
)
Socket adapter
q
3
HT62900000
(
—
)
Socket adapter
NT124
Measuring pinion preload and total
preload
HT72400000
(
—
)
Slide hammer
NT125
Removing differential case assembly
GI
MA
EM
LC
EC
FE
AT
FA
RA
BR
ST
RS
BT
HA
EL
IDX
PREPARATION
Special Service Tools (Cont’d)
PD-3
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Tool number
(Kent-Moore No.)
Tool name
Description
(J34309)
Differential shim
selector
NT134
Adjusting bearing preload and gear height
(J25269-4)
Side bearing discs
(2 Req’d)
NT136
Selecting pinion height adjusting washer
(J8129)
Spring gauge
NT127
Measuring carrier turning torque
KV38107900
(J39352)
Side oil seal protector
NT129
Installing final drive side flange
Commercial Service Tool
Tool name
Description
Drift
NT131
Installing pinion rear bearing outer race
a: 89 mm (3.50 in) dia.
b: 200 mm (7.87 in)
PREPARATION
Special Service Tools (Cont’d)
PD-4
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