Infiniti M35/M45 Y50. Manual - part 776

FSU-1

FRONT SUSPENSION

E  SUSPENSION

CONTENTS

C

D

F

G

H

I

J

K

L

M

SECTION 

FSU

A

B

FSU

FRONT SUSPENSION

2WD

PRECAUTIONS .......................................................... 3

Caution ..................................................................... 3

PREPARATION ........................................................... 4

Special Service Tools [SST]  ..................................... 4
Commercial Service Tools ........................................ 4

NOISE, VIBRATION AND HARSHNESS (NVH) 
TROUBLESHOOTING ................................................ 5

NVH Troubleshooting Chart  ..................................... 5

FRONT SUSPENSION ASSEMBLY ........................... 6

On-Vehicle Inspection  .............................................. 6

INSPECTION OF UPPER LINK BALL JOINT 
END PLAY ............................................................. 6
SHOCK ABSORBER INSPECTION  ..................... 6

Wheel Alignment Inspection ..................................... 6

DESCRIPTION ...................................................... 6
PRELIMINARY CHECK  ........................................ 6
GENERAL INFORMATION AND RECOMMEN-
DATIONS .............................................................. 6
THE ALIGNMENT PROCESS  .............................. 7
INSPECTION OF CAMBER, CASTER AND 
KINGPIN INCLINATION ANGLES  ........................ 7

Components ............................................................. 8
Removal and Installation  .......................................... 9

REMOVAL ............................................................. 9
INSTALLATION ................................................... 10

COIL SPRING AND SHOCK ABSORBER ................11

Removal and Installation  .........................................11

REMOVAL ............................................................11
INSTALLATION ....................................................11

Disassembly and Assembly  ....................................11

DISASSEMBLY ....................................................11
INSPECTION AFTER DISASSEMBLY  ............... 12
ASSEMBLY ......................................................... 12

TRANSVERSE LINK  ................................................ 14

Removal and Installation  ........................................ 14

REMOVAL ........................................................... 14
INSPECTION AFTER REMOVAL  ....................... 14
INSTALLATION ................................................... 15

UPPER LINK ............................................................. 16

Removal and Installation  ........................................ 16

REMOVAL ........................................................... 16
INSPECTION AFTER REMOVAL  ....................... 16
INSTALLATION ................................................... 16

STABILIZER BAR  ..................................................... 18

Removal and Installation  ........................................ 18

REMOVAL ........................................................... 18
INSPECTION AFTER REMOVAL  ....................... 18
INSTALLATION ................................................... 18

SERVICE DATA AND SPECIFICATIONS (SDS)  ...... 19

Wheel Alignment (Unladen *)  ................................. 19
Ball Joint  ................................................................. 19
Wheelarch Height (Unladen*) ................................. 20

AWD

PRECAUTIONS ........................................................ 21

Caution ................................................................... 21

PREPARATION ......................................................... 22

Special Service Tools [SST]  ................................... 22
Commercial Service Tools  ...................................... 22

NOISE, VIBRATION AND HARSHNESS (NVH) 
TROUBLESHOOTING .............................................. 23

NVH Troubleshooting Chart  ................................... 23

FRONT SUSPENSION ASSEMBLY  ......................... 24

On-Vehicle Inspection ............................................. 24

INSPECTION OF UPPER LINK BALL JOINT 
END PLAY  ........................................................... 24
SHOCK ABSORBER INSPECTION .................... 24

Wheel Alignment Inspection  ................................... 24

DESCRIPTION .................................................... 24
PRELIMINARY CHECK ....................................... 24
GENERAL INFORMATION AND RECOMMEN-
DATIONS ............................................................. 24
THE ALIGNMENT PROCESS ............................. 25
INSPECTION OF CAMBER, CASTER AND 
KINGPIN INCLINATION ANGLES ....................... 25

FSU-2

Components ........................................................... 26
Removal and Installation  ........................................ 27

REMOVAL ........................................................... 27
INSTALLATION .................................................... 28

COIL SPRING AND SHOCK ABSORBER  ............... 29

Removal and Installation  ........................................ 29

REMOVAL ........................................................... 29
INSTALLATION .................................................... 29

Disassembly and Assembly .................................... 29

DISASSEMBLY ................................................... 29
INSPECTION AFTER DISASSEMBLY ................ 30
ASSEMBLY ......................................................... 30

TRANSVERSE LINK ................................................. 32

Removal and Installation  ........................................ 32

REMOVAL ........................................................... 32
INSPECTION AFTER REMOVAL ........................ 32
INSTALLATION .................................................... 33

UPPER LINK  .............................................................34

Removal and Installation .........................................34

REMOVAL ............................................................34
INSPECTION AFTER REMOVAL ........................34
INSTALLATION ....................................................34

STABILIZER BAR  .....................................................36

Removal and Installation .........................................36

REMOVAL ............................................................36
INSPECTION AFTER REMOVAL ........................36
INSTALLATION ....................................................36

SERVICE DATA AND SPECIFICATIONS (SDS)  ......37

Wheel Alignment (Unladen*) ...................................37
Ball Joint  .................................................................37
Wheelarch Height (Unladen*)  .................................37

PRECAUTIONS

FSU-3

[2WD]

C

D

F

G

H

I

J

K

L

M

A

B

FSU

[2WD]

PRECAUTIONS

PFP:00001

Caution

NES000I6

●

When installing rubber bushings, the final tightening must be carried out under unladen conditions with
tires on ground. Oil might shorten the life of rubber bushings. Be sure to wipe off any spilled oil.

–

Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.

●

After servicing suspension parts, be sure to check wheel alignment.

●

Self-lock nuts are not reusable. Always use new ones when installing. Since new self-lock nuts are pre-
oiled, tighten as they are. 

FSU-4

[2WD]

PREPARATION

PREPARATION

PFP:00002

Special Service Tools [SST]

NES000I7

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tools

NES000I8

Tool number
(Kent-Moore No.)
Tool name

Description

KV991040S0
(

—

)

CCK gauge attachment
1. Plate
2. Guide bolt
3. Nut
4. Spring
5. Center plate
6. KV99104020 Adapter A
    a: 72 mm (2.83 in) dia.
7. KV99104030 Adapter B
    b: 65 mm (2.56 in) dia.
8. KV99104040 Adapter C
    c: 57 mm (2.24 in) dia.
9. KV99104050 Adapter D
    d: 53.4 mm (2.102 in) dia.

Measuring wheel alignment

ST35652000
(

—

)

Strut attachment

Disassembling and assembling shock 
absorber

ST3127S000
(See J-25765-A)
Preload Gauge
1. GG91030000

(J-25765-A)
Torque wrench 

2. HT62940000

(

—

)

Socket adapter

3. HT62900000

(

—

)

Socket adapter

Measuring rotating torque of ball joint

S-NT498

ZZA0807D

NT124

Tool name

Description

Power tool

●

Removing wheel nuts

●

Removing torque member fixing bolts

●

Removing undercover 

●

Removing front suspension compo-
nents parts

●

Removing hub lock nut

Spring compressor

Removing and installing coil spring

PBIC0190E

S-NT717