2009 INFINITI QX56 Rax

WHEEL HUBRAX-7
< REMOVAL AND INSTALLATION >
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REMOVAL AND INSTALLATION
WHEEL HUB
Removal and InstallationINFOID:0000000003772260
Rear Wheel Hub and Bearing Assembly
NOTE:
The rear ABS sensor is routed through the back of t he rear backing plate and into the side of the wheel hub
and bearing assembly. It is necessary to remove the wheel hub and bearing assembly to remove the rear ABS
sensor.
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the rear brake caliper, without disconnecting t he hydraulic hose, using power tool. Reposition the
rear brake caliper aside using suitable wire. Refer to BR-36, "Removal and Installation of Brake Caliper
and Disc Rotor".
NOTE:
 Do not depress the brake pedal while the brake caliper is removed.
3. Remove the rear disc rotor.
4. Remove the cotter pin, then remove the nut from the drive shaft using power tool.
 Discard the cotter pin, use a new one for installation.
5. Remove the drive shaft. Refer to RAX-9, "Removal and Installa-
tion".
6. Remove the four wheel hub and bearing assembly bolts using power tool.  Discard the four wheel hub and bearing assembly bolts, use new ones for installation.
WDIA0189E
1. Back plate 2. Rear ABS sensor 3. Wheel hub and bearing assembly
4. Wheel stud 5. Rear disc rotor 6. Cotter pin
LDIA0050E
Revision: December 20092009 QX56

RAX-8
< REMOVAL AND INSTALLATION >
WHEEL HUB
7. Pull out the wheel hub and bearing assembly for access toremove the rear ABS sensor from the wheel hub and bearing
assembly as shown.
 Inspect the ABS sensor O-ring, replace the ABS sensor
assembly if damaged.
 Clean the ABS sensor hole and mounting surface with a suit-
able brake cleaner and a clean lint-free shop rag. Be careful
that dirt and debris do not enter the axle bearing area.
 Apply a coat of suitable grease to the ABS sensor O-ring and
mounting hole.
CAUTION:
Do not pull on the ABS harness.
8. Remove the wheel hub and bearing assembly.
INSTALLATION
Installation is in the reverse order of removal.
 Apply grease 44003 7S000 to contact surface between wheel hub and drive shaft. Use sufficient gr ease to completely coat contact
area.
 Inspect the ABS sensor O-ring, replace the ABS sensor assembly
if damaged.
 Clean the ABS sensor hole and mounting surface with a suitable brake cleaner and a clean lint-free shop rag. Be careful that dirt
and debris do not enter the axle bearing area.
 Apply a coat of suitable grease to the ABS sensor O-ring and
mounting hole.
 Use a new cotter pin for installation.
 Use new wheel hub and bearing assembly bolts for installation.
LDIA0052E
WDIA0291E
Revision: December 20092009 QX56

REAR DRIVE SHAFTRAX-9
< REMOVAL AND INSTALLATION >
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REAR DRIVE SHAFT
ComponentINFOID:0000000003772259
Rear Drive Shaft
Removal and InstallationINFOID:0000000005889856
REMOVAL
1. Remove the wheel and tire using power tool.
2. Remove the stabilizer bar clamp. Refer to RSU-23, "Removal and Installation"
.
3. Remove the cotter pin and discar d, then remove the drive shaft
nut from the drive shaft.
 Do not reuse the cotter pin, discard after removal and use a new cotter pin for installation.
4. Remove the six bolts from the inside fl ange of the drive shaft using power tool.
 Do not reuse the drive shaft inside flange bolts, discard after removal and use new bolts for installation.
WDIA0263E
1. Rear final drive assembly 2. Rear drive shaft 3. Rear brake and hub assembly
4. Cotter pin
LDIA0050E
Revision: December 20092009 QX56

RAX-10
< REMOVAL AND INSTALLATION >
REAR DRIVE SHAFT
5. Separate the drive shaft from the wheel hub and bearing assembly by lightly tapping the end with a suit-able hammer and wood block. If it is difficult to separate, use a suitable puller.
6. Remove the drive shaft. CAUTION:
When removing the drive shaft, do not bend at an excessive angle to the drive shaft joint. Do not
excessively extend the slide joint.
INSPECTION AFTER REMOVAL
 Move the joint up and down, left and right, and in the axial direc-
tion. Check for any rough movement or significant looseness.
 Check the boot for cracks or other damage, and for any grease
leakage.
 If necessary, disassemble the drive shaft, and repair as necessary.
INSTALLATION
Installation is in the reverse order of removal.
 Do not reuse the drive shaft inside flange bolts, discard after removal and use new bolts for installation.
 Do not reuse the cotter pin, discard after removal and use a new cotter pin for installation.
RAA0030D
Drive shaft lock nut : Refer to RAX-9, "Component".
Drive shaft inside flange bolts : Refer to RAX-9, "Component"
.
Revision: December 20092009 QX56

REAR DRIVE SHAFTRAX-11
< DISASSEMBLY AND ASSEMBLY >
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DISASSEMBLY AND ASSEMBLY
REAR DRIVE SHAFT
Disassembly and AssemblyINFOID:0000000005889855
DISASSEMBLY
Final Drive Side
1. Secure the drive shaft in a vise. CAUTION:
When securing the drive shaft in a vise, use copper or aluminum plates between the vise and the
drive shaft.
2. Remove the boot bands.
3. If the plug needs to be removed, move the boot to t he wheel side, then drive the plug out using a suitable
tool.
4. Remove the stopper ring using a suitable tool as shown, and pull the housing out.
1. Plug 2. Housing 3. Snap ring
4. Ball cage, steel ball, inner race assembly 5. Stopper ring 6. Boot band
7. Boot 8. Shaft 9. Circlip
10. Joint sub-assembly
SDIA1488E
SRA249A
Revision: December 20092009 QX56

RAX-12
< DISASSEMBLY AND ASSEMBLY >
REAR DRIVE SHAFT
5. Remove the snap ring using a suitable tool, then remove the ballcage, steel ball, inner race assembly from the drive shaft.
6. Remove the boot from the drive shaft.
7. Remove any old grease on the housing using paper towels.
Wheel Side
1. Secure the drive shaft in a vise. CAUTION:
When securing the drive shaft in a vise, use copp er or aluminum plates between the vise and the
drive shaft.
2. Remove the boot bands, then remove the boot from the joint sub-assembly.
3. Screw a suitable drive shaft puller 30 mm (1.18 in) or more into the threaded part of the joint sub-assembly. Pull the joint sub-
assembly out of the drive shaft as shown.
CAUTION:
 If the joint sub-assembly cannot be removed after five ormore attempts, replace the drive shaft and joint sub-
assembly as a set.
 Align the sliding hammer and drive shaft and remove the
joint sub-assembly by pulling directly.
4. Remove the boot from the drive shaft.
5. Remove the circlip from the drive shaft.
6. While rotating the ball cage, remove any old grease on the joint sub-assembly using paper towels.
INSPECTION AFTER DISASSEMBLY
Drive Shaft
 Replace the drive shaft if there is any runout, cracking, or other damage.
Joint Sub-assembly
 Check for any rough rotation or unusual axial looseness.
 Clean any foreign material from inside the joint sub-assembly.
 Check for any compression scars, cracks, or fractures.
CAUTION:
If any defective conditions are found in the joint sub-assembly comp onents, replace the entire joint
sub-assembly.
Sliding Joint Side (Housing)
 Check for any compression scars, cracks, fracture s, or unusual wear on the ball rolling surface.
 Check for any damage to the drive shaft screws.
 Check for any deformation of the boot installation components.
Ball Cage
 Check the sliding surface for any compression scars, cracks, or fractures.
Steel Ball
 Check for any compression scars, cr acks, fractures, or unusual wear.
Inner Race
SFA514A
SDIA0606E
Revision: December 20092009 QX56

REAR DRIVE SHAFTRAX-13
< DISASSEMBLY AND ASSEMBLY >
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 Check the ball sliding surface for any co mpression scars, cracks, or fractures.
 Check for any damage to the serrated part. CAUTION:
If any defective conditions are fo und, install a new housing, ball cage, steel ball, and inner race as a
set.
ASSEMBLY
Final Drive Side
1. If the plug has been removed, use Tool to press in a new one.
NOTE:
Discard the old plug and use a new one for assembly.
2. Wrap the serrated part of the shaft with tape. Install the boot band and boot to shaft.
NOTE:
Discard the old boot band and boot and use a new one for
assembly.
3. Remove the tape wound around the serrated part of the shaft.
4. Install the ball cage, steel ball, and inner race assembly on the shaft, and secure them tightly using the snap ring.
NOTE:
Discard the old snap ring and use a new one for assembly.
5. Insert the specified quantit y of Genuine NISSAN Grease or
equivalent, onto the housing (indicated by * marks), and install it
onto shaft. Refer to MA-12, "Fluids and Lubricants"
.
6. Install the stopper ring onto the housing. Tool number : KV38100500 ( — )
: KV38102200 ( — )
SDIA1153E
SFA800
SDIA1125E
Grease capacity : 175 − 195 g (6.17 − 6.88 oz)
RAC0678D
Revision: December 20092009 QX56

RAX-14
< DISASSEMBLY AND ASSEMBLY >
REAR DRIVE SHAFT
7. After installation, pull on the shaft to check engagement between the joint sub-assembly and the stopper
ring.
8. Install the boot securely into the grooves (indicated by * marks) as shown.
CAUTION:
If there is grease on boot mating surfaces (indicated by*
marks) of shaft and housing, boot may come off. Remove
all grease from surfaces.
9. Check that the boot installation length (L) is the length indicated below. Insert a suitable tool into large side of the boot. Bleed the
air from the boot to pr event any boot deformation.
CAUTION:
 The boot may break if the boot installation length is less than the specified value.
 Do not to touch the tip of the t ool to the inside of the boot.
10. Secure the large and small ends of the boot with the new boot bands as shown.
NOTE:
Discard the old boot bands and use new ones for assembly.
11. After installing the housing and shaft, rotate the boot to check that the boot is positioned correctly. If the
boot is not positioned correctly, reposition the boot and secure the boot using a new boot band.
Wheel Side
1. Insert the Genuine NISSAN Grease or equivalent, into the joint
sub-assembly serration hole until the grease begins to ooze
from the ball groove and serration hole. Refer to MA-12, "Fluids
and Lubricants". After inserting the grease, use a shop cloth to
wipe off the grease that has oozed out.
2. Wind the serrated part of the shaft with tape. Install the boot
band and boot onto the shaft. Do not damage the boot.
NOTE:
Discard the old boot band and boot and use a new one for
assembly.
3. Remove the protective tape wound around the serrated part of the shaft. Boot installation length
(L) : 147.9 mm (5.82 in)
WDIA0287E
SFA395
SDIA1127E
SFA800
Revision: December 20092009 QX56