Infiniti QX56 (JA60). Manual - part 553

FSU-18

< REMOVAL AND INSTALLATION >

UPPER BALL JOINT AND LOWER BALL JOINT

UPPER BALL JOINT AND LOWER BALL JOINT

Removal and Installation

INFOID:0000000005148117

The ball joints are part of the upper and lower links. Refer to 

FSU-16, "Removal and Installation"

  (upper link),

FSU-17, "Removal and Installation"

 (lower link). 

KNUCKLE

FSU-19

< REMOVAL AND INSTALLATION >

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KNUCKLE

Removal and Installation

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REMOVAL

1. Remove wheel hub and bearing assembly. Refer to 

FAX-7, "Removal and Installation"

 .

• Disconnect wheel sensor harness connector. Do not remove wheel sensor from wheel hub and bearing

assembly for this procedure.

2. Remove steering outer socket from steering knuckle using Tool. 

CAUTION:

• Be careful not to damage ball joint boot.

• Temporarily tighten nut to prevent damage to threads and

to prevent Tool from coming off.

3. Remove the coil spring and shock absorber assembly using power tool. Refer to 

FSU-14, "Removal and

Installation"

 .

4. Support lower link using a suitable jack.
5. Remove cotter pin and nut from upper link ball joint and discard the cotter pin.
6. Separate upper link ball joint from steering knuckle using Tool.

1.

Disc rotor

2.

Wheel hub and bearing assembly

3.

Wheel stud

4.

Splash guard

5.

Steering knuckle

Front

AWDIA0423GB

Tool number

: HT72520000 (J-25730-A)

WGIA0130E

Tool number

: ST29020001 (J-24319-01)

LEIA0095E

FSU-20

< REMOVAL AND INSTALLATION >

KNUCKLE

7. Remove pinch bolt from steering knuckle using power tool, then

separate lower link ball joint from steering knuckle.

8. Remove steering knuckle from vehicle.

INSPECTION AFTER REMOVAL

Check for deformity, cracks and damage on each part, replace if necessary.

• Perform ball joint inspection. Refer to 

FSU-10, "Inspection"

 .

INSTALLATION

Installation is in the reverse order of removal.

• Refer to 

FSU-13, "Component"

 for tightening torques.

CAUTION:

Use a new cotter pin for installation of lock nut.

• When installing disc rotor on wheel hub and bearing assembly,

align the marks.

NOTE:

When not using the alignment mark, refer to 

BR-7, "DISC ROTOR

: Front Rotor Inspection"

 .

• When installing wheel and tire, refer to 

WT-49, "Rotation"

 .

LEIA0097E

WDIA0044E

COIL SPRING AND SHOCK ABSORBER

FSU-21

< DISASSEMBLY AND ASSEMBLY >

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DISASSEMBLY AND ASSEMBLY

COIL SPRING AND SHOCK ABSORBER

Disassembly and Assembly

INFOID:0000000005148119

DISASSEMBLY

1. Set the shock absorber in a vise, then loosen (without removing)

the piston rod lock nut as shown.

CAUTION:

Do not remove piston rod lock nut at this time.

2. Compress the spring using tool until the shock absorber mount-

ing insulator can be turned by hand.

WARNING:

Make sure that the pawls of the two tools are firmly hooked

on the spring. The spring compressors must be tightened

alternately and evenly so as not to tilt the spring.

3. Remove the piston rod lock nut.

• Discard the piston rod lock nut, use a new nut for assembly.

INSPECTION AFTER DISASSEMBLY

Shock Absorber Assembly

• Check for smooth operation through a full stroke, both compression and extension.

• Check for oil leakage on welded or gland packing portions.

• Check piston rod for cracks, deformation or other damage and replace if necessary.

Mounting Insulator and Rubber Parts

Check cemented rubber-to-metal portion for separation or cracks. Check rubber parts for deterioration and

replace if necessary.

Coil Spring

• Check for cracks, deformation or other damage and replace if necessary.

• Check the free spring height.

ASSEMBLY

SSU002

SSU003

Front spring free height
2WD

: 325.5 

± 3 mm (12.8 ± 0.1 in)

4WD

: 335.0 

± 3 mm (13.2 ± 0.1 in)