2008 INFINITI FX35 mount

FRONT FINAL DRIVE ASSEMBLYFFD-15
< SERVICE INFORMATION >
CEF
G H
I
J
K L
M A
B
FFD
N
O P
 Tighten mounting bolts in the order as described below when installing front final drive assembly: side of gear carrier (1), upper
side of gear carrier (2), part of ca rrier cover (3), lower part of gear
carrier (4).
CAUTION:
Align the mating faces of gear car rier and oil pan for installa-
tion.
 When installing breather hoses (1) and tube (2), refer to the figure. CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when installing
it.
- Make sure the paint mark facing up ( ).
- Securely install the hose until it seats the rounded portion of the
tube ( ).
- Install breather connector as shown in the figure.
- Seat the breather tube bracket end (A) to the machined face (B) of gear carrier boss.
 When oil leaks while removing final drive assembly, check oil level after the installation. Refer to FFD-8, "
Changing Differential Gear
Oil".
Removal and Installation (VK45DE Models)INFOID:0000000001327486
COMPONENTS
PDIA0839J
PDIA0790J
:Vehicle front
Angle “A”: 0 - 30
°
PDIA0841J
PDIA0842E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-16
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
REMOVAL
1. Remove three way catalyst (right bank). Refer to EM-179.
2. Remove stabilizer assembly with power tool. Refer to FSU-15
.
3. Remove steering gearbox mounting bolts with power tool. Refer to PS-17
.
4. Remove front drive shaft both. Refer to FA X - 1 3
.
5. Remove side shaft assembly.
6. Remove front propeller shaft. Refer to PR-4
.
7. Remove front suspension member with power tool. Refer to FSU-16
.
8. Remove engine wire harness clamp bolts from front final drive.
9. Remove breather hose and tube.
10. Remove mounting bolts and remove front final drive assembly from the vehicle.
INSTALLATION
Note the following, and installation is in the reverse order of removal.
 Refer to "COMPONENTS" about each tightening torque.
 When installing side shaft, apply multi-purpose grease to contact surface of side shaft and side shaft oil seal.
1. Front final drive assembly 2. Side shaft 3. Bushing
4. Front propeller shaft 5. Breather tube 6. Breather hose
7. Breather connector 8. Harness bracket
PDIA0659E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FINAL DRIVE ASSEMBLYFFD-17
< SERVICE INFORMATION >
CEF
G H
I
J
K L
M A
B
FFD
N
O P
 Tighten mounting bolts in the order as described below when installing front final drive assembly: upper side of gear carrier (1),
part of carrier cover (2), lower part of gear carrier (3).
CAUTION:
Align the mating faces of gear car rier and oil pan for installa-
tion.
 When installing breather hoses and tube, refer to the figure. CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when installing
it.
 Install breather connector as shown in the figure.
 When oil leaks while removing final drive assembly, check oil level after the installation. Refer to FFD-8, "
Checking Differential Gear
Oil".
Disassembly and AssemblyINFOID:0000000001327487
COMPONENTS (VQ35DE MODELS)
PDIA1213E
PDIA0661E
Angle “A”: 22.5°
“B”: 22.5 - 45 °
PDIA0822E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FINAL DRIVE ASSEMBLYFFD-23
< SERVICE INFORMATION >
CEF
G H
I
J
K L
M A
B
FFD
N
O P
 If the tooth contact is near the face (face contact), or near the heel (heel contact), thicken pinion height adjusting washers to move
drive pinion closer to drive gear.
Refer to FFD-39, "
Inspection and Adjustment".
 If the tooth contact is near the flank (flank contact), or near the toe
(toe contact), thin pinion height adjusting washers to move drive
pinion farther from drive gear.
Refer to FFD-39, "
Inspection and Adjustment".
Backlash
1. Remove carrier cover. Refer to "Differential Assembly".
2. Fit a dial indicator to the drive gear face to measure the back-
lash.
 If the backlash is outside of the specified value, change the thick- ness of side bearing adjusting washer.
Companion Flange Runout
1. Fit a dial indicator onto the companion flange face (inner side of the propeller shaft mounting bolt holes).
2. Rotate companion flange to check for runout.
3. Fit a test indicator to the inner side of companion flange (socket diameter).
4. Rotate companion flange to check for runout.
5. If the runout value is outside the runout limit, follow the procedure below to adjust.
a. Check for runout while changing the phase between companion flange and drive pinion by 90 ° step, and
search for the position where the runout is the minimum.
PDIA0440E
PDIA0441E
Backlash: 0.10 - 0.15 mm (0.0039 - 0.0059 in)
When the backlash is large:
Decrease side bearing adju sting washer thickness.
Refer to FFD-39, "
Inspection and Adjustment".
When the backlash is small: Increase side bearing adjust ing washer thickness. Re-
fer to FFD-39, "
Inspection and Adjustment".
SDIA0009J
Runout limit: 0.18 mm (0.0071 in)
Runout limit: 0.13 mm (0.0051 in)
PDIA0646E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-24
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
b. If the runout value is still outside of the limit after the phase has been changed, possible cause will be an
assembly malfunction of drive pinion and pinion bearing and malfunction of pinion bearing. Check for
these items and repair if necessary.
c. If the runout value is still outside of the limit after the check and repair, replace companion flange.
DISASSEMBLY
Side Shaft Assembly
1. Hold extension tube retainer with puller, then press out side shaft using a press.
2. Remove side shaft oil seal (1) from extension tube retainer with a flat- blade screwdriver.
CAUTION:
Be careful not to damage extension tube retainer.
3. Remove side shaft bearing from extension tube retainer.
4. Remove O-ring from extension tube retainer.
5. Remove dust sealed from side shaft.
Differential Assembly
1. Drain gear oil.
2. Remove carrier cover mounting bolts.
3. Remove carrier cover to insert the seal cutter between gear car- rier and carrier cover.
CAUTION:
 Be careful not to damage the mating surface.
 Never insert flat-bladed screwdriver, this way damage the
mating surface.
4. Remove side retainer.
5. Remove side bearing adjusting shim.
6. Remove O-ring from side retainer.
PDIA0793J
PDIA0794J
Tool number A: KV10111100 (J-37228)
PDIA0795J
PDIA0670E
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-26
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
13. Remove side bearing inner race.To prevent damage to bearing, engage puller jaws in groove
().
CAUTION:
 To prevent damage to the side bearing and drive gear,
place copper plates between these parts and vise.
 It is not necessary to remove side bearing inner race
except it is replaced.
14. For proper reinstallation, paint matching marks on one differen- tial case assembly.
CAUTION:
For matching marks, use pain t. Never damage differential
case and drive gear.
15. Remove drive gear mounting bolts.
16. Tap drive gear off differential case assembly with a soft hammer. CAUTION:
Tap evenly all around to keep drive gear from bending.
17. Remove lock pin of pinion mate shaft with a punch from drive gear side.
18. Remove pinion mate shaft. Tool number A: ST33051001 (J-22888-20)
B: ST33061000 (J-8107-2)
PDIA0758J
PDIA0496E
PDIA0759J
SDIA0031J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FFD-30
< SERVICE INFORMATION >
FRONT FINAL DRIVE ASSEMBLY
3. Press-fit side bearing outer race into gear carrier with tool.CAUTION:
 At first, using a hammer, tap bearing outer race until itbecomes flat to gear carrier.
 Never reuse side bearing outer race.
4. Place the differential case assembly into gear carrier.
5. Install side bearing adjusting shim before disassembling or shim which thickness is the same as the one before disassembling.
6. Install side retainer assembly to gear carrier. CAUTION:
Never install O-ring.
7. Install side retainer mounting bolts to the specified torque. Refer to "COMPONENTS (VQ35DE MODELS)", "COMPONENTS
(VK45DE MODELS)".
8. Measure the turning torque of the gear carrier at the drive gear
mounting bolts with a spring gauge. Tool number A: ST30611000 (J-25742-1)
B: KV31103000 (J-38982)
PDIA0812J
PDIA0671E
PDIA0678E
PDIA0669E
Tool number : — (J-8129)
Specification:
34.2 - 39.2 N (3.5 - 4.0 kg, 7.7 - 8.8 lb) of pulling force at
the drive gear bolt
SPD194A
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

FRONT FINAL DRIVE ASSEMBLYFFD-31
< SERVICE INFORMATION >
CEF
G H
I
J
K L
M A
B
FFD
N
O P
9. If the turning torque is outside the specification, use a thicker/ thinner side bearing adjusting shim to adjust. Refer to FFD-39,
"Inspection and Adjustment".
10. Record the total amount of shim thickness required for the cor- rect carrier side bearing preload.
Pinion Gear Height
If the hypoid gear set has been replaced, se lect the pinion height adjusting washer.
1. Use the formula below to calculate pinion height adjusting washer thickness.
2. Select the proper pinion height adjusting washer. Refer to FFD-39, "
Inspection and Adjustment".
If impossible find the desired thickness of washer, us e washer with thickness closest to the calculated
value.
Pinion Bearing Preload
 Assemble the drive pinion parts if they are disassembled. Refer to "Drive Pinion Assembly".
1. Make sure all parts are clean. Also, make sure the bearings are well lubricated with gear oil.
2. Install companion flange (1). NOTE:
When reusing drive pinion, align the matching mark (B) of drive
pinion with the matching mark (A) of companion flange, and then
install companion flange (1).If the turning torque is l
ess than the specified range:
Decrease the side bearing adjusting shim thickness.
If the turning torque is gr eater than the specification:
Increase the side bearing adjusting shim thickness.
SPD772
Washer selection equation:
T = T
0 + (t1 - t2)
T: Correct washer thickness
T
0: Removed washer thickness
t
1: Old drive pinion head letter “H × 0.01”
(“H”: machined tolerance 1/100 mm × 100)
t
2: New drive pinion head letter “H × 0.01”
(“H”: machined tolerance 1/100 mm × 100)
Example:
T = 3.21 + [(2 × 0.01) - (-1 × 0.01)] = 3.24
T
0:3.21
t
1:+2
t
2:-1
Example: Calculated value... T = 3.22 mm
Used washer... T = 3.21 mm
SDIA0249J
PDIA0799J
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C