2005 NISSAN X-TRAIL check

RFD-1
REAR FINAL DRIVE
D DRIVELINE/AXLE
CONTENTS
C
E
F
G
H
I
J
K
L
M
SECTION RFD
A
B
RFD

REAR FINAL DRIVE
PRECAUTIONS .......................................................... 2
Service Notice or Precautions .................................. 2
PREPARATION ........................................................... 3
Special Service Tools ............................................... 3
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 6
NVH Troubleshooting Chart ..................................... 6
REAR FINAL DRIVE SYSTEM ................................... 7
Sectional View .......................................................... 7
DIFFERENTIAL GEAR OIL ........................................ 8
Changing Differential Gear Oil ................................. 8
DRAINING ............................................................. 8
FILLING ................................................................. 8
Checking Differential Gear Oil .................................. 8
OIL LEAKAGE AND OIL LEVEL ........................... 8
FRONT OIL SEAL ...................................................... 9
Removal and Installation .......................................... 9
REMOVAL ............................................................. 9
INSTALLATION ..................................................... 9
SIDE OIL SEAL .........................................................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
ELECTRIC CONTROLLED COUPLING .................. 12
Removal and Installation ........................................ 12
REMOVAL ........................................................... 12
INSTALLATION ................................................... 13REAR FINAL DRIVE ASSEMBLY ............................ 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSTALLATION ................................................... 15
Components ........................................................... 16
Pre-Inspection ........................................................ 17
TOTAL PRELOAD ............................................... 17
DRIVE GEAR TO DRIVE PINION BACKLASH ... 18
DRIVE GEAR RUNOUT ...................................... 19
COMPANION FLANGE RUNOUT ....................... 19
TOOTH CONTACT .............................................. 19
Disassembly and Assembly .................................... 22
DISASSEMBLY ................................................... 22
ASSEMBLY ......................................................... 25
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 32
General Specification ............................................. 32
Drive Gear Vibration ............................................... 32
Total Preload ........................................................... 32
Side Gear Clearance Adjustment ........................... 32
Drive Pinion Gear Preload Adjustment ................... 32
Side Bearing Preload Adjustment ........................... 32
THRUST WASHER FOR ADJUSTMENT OF SIDE
GEAR BACK CLEARANCE .................................... 32
DRIVE PINION GEAR PRELOAD ADJUSTING
SHIM ....................................................................... 32
ADJUSTING SHIM FOR SIDE BEARING PRE-
LOAD ...................................................................... 33

RFD-2
PRECAUTIONS

PRECAUTIONSPFP:00001
Service Notice or PrecautionsEDS001YY

Check for the correct installation status prior to removal or disassembly. If matching marks are required,
be certain they do not interfere with the function of the parts when applied.

Overhaul should be done in a clean work area, it is preferable to work in dustproof area.

Before disassembly, using steam or white gasoline, completely remove sand and mud from the exterior of
the unit, preventing them from entering into the unit during disassembly or assembly.

Check appearance of the disassembled parts for damage, deformation, and unusual wear. Replace them
with a new ones if necessary.

Gaskets, seals and O-rings should be replaced any time when the unit is disassembled.

In principle, tighten bolts or nuts gradually in several steps working diagonally from inside to outside. If
tightening sequence is specified, observe it.

Clean and flush the parts sufficiently and blow-dry them.

Be careful not to damage sliding surfaces and mating surfaces.

When applying sealant, remove the old sealant from the mounting surface; then remove any moisture, oil,
and foreign materials from the application and mounting surfaces.

Always use shop paper for cleaning the inside of components.

Avoid using cotton gloves or shop rags to prevent entering of lint.

During assembly, observe the specified tightening torque, and apply new differential oil, petroleum jelly, or
multi-purpose grease as specified for each vehicle, if necessary.

RFD-4
PREPARATION

Commercial Service ToolsEDS002VF
ST22360002
Drift
a: 29 mm (1.14 in) dia.
b: 23 mm (0.91 in) dia.
c: 150 mm (5.91 in)Installing coupling front bearing
KV389L0010
Dummy cover set

Checking backlash

Checking drive gear runout

Checking tooth contact
KV38108500
Drive pinion socket

Measuring preload torque

Removing and installing drive pinion nut
KV38108400
Pinion nut wrench

Measuring preload torque

Removing drive pinion nut Tool number
Tool nameDescription
ZZA0546D
PDIA0894E
ZZA1205D
ZZA1206D
Tool nameDescription
Flange wrench Removing and installing companion flange
lock nut
Drift
a: 54.5 mm (2.146 in) dia.Removing and installing carrier case and rear
cover (2 pieces are used)
Pin punch
a: 4.5 mm (0.177 in) dia.Removing and installing lock pin
NT771
PDIA0893E
NT410

RFD-6
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartEDS001Z1
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
Refer to RFD-24, "
INSPECTION
" .
Refer to RFD-19, "
TOOTH CONTACT
" .
Refer to RFD-24, "
INSPECTION
" .
Refer to RFD-18, "
DRIVE GEAR TO DRIVE PINION BACKLASH
" .
Refer to RFD-19, "
COMPANION FLANGE RUNOUT
" .
Refer to RFD-8, "
Checking Differential Gear Oil
" .
NVH in PR section.
NVH in FAX, RAX, FSU and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise×××××××××××××

RFD-8
DIFFERENTIAL GEAR OIL

DIFFERENTIAL GEAR OILPFP:KLD30
Changing Differential Gear OilEDS0027G
DRAINING
1. Stop engine.
2. Remove drain plug and drain oil.
3. Set a gasket on drain plug and install it to final drive assembly
and tighten to the specified torque. Refer to RFD-16, "
Compo-
nents" .
CAUTION:
Do not reuse gasket.
FILLING
1. Remove filler plug. Fill with new oil until oil level reaches the
specified level near filler plug mounting hole.
2. After refilling oil, check oil level. Set a gasket to filler plug, then
install it to final drive assembly. Refer to RFD-16, "
Components"
.
CAUTION:
Do not reuse gasket.
Checking Differential Gear OilEDS0027H
OIL LEAKAGE AND OIL LEVEL

Make sure that oil is not leaking from final drive assembly or around it.

Check oil level from filler plug mounting hole as shown in the fig-
ure.
CAUTION:
Do not start engine while checking oil level.

Set a gasket on filler plug and install it on final drive assembly.
Refer to RFD-16, "
Components" .
CAUTION:
Do not reuse gasket.
PDIA0454E
Oil grade and Viscosity:
Refer to MA-17, "
Fluids and Lubricants" .
Oil capacity:
Approx. 0.55 (1 Imp pt)
PDIA0453E
PDIA0453E

REAR FINAL DRIVE ASSEMBLY
RFD-15
C
E
F
G
H
I
J
K
L
MA
B
RFD

INSTALLATION
Note the following, and install in the reverse order of removal.

Refer to RFD-16, "Components" about each tightening torque.

When installing breather hoses, refer to the figure and following.
CAUTION:
Make sure there are no pinched or restricted areas on the
breather hose caused by bending or winding when install-
ing it.
–For installation of rear final drive breather hose, the vehicle side
end shall be inserted to cross member. Install metal connector
side of this hose to rear cover by inserting it with aiming painted
marking to the front of vehicle.
–For installation of electric controlled coupling breather hose, the
vehicle side end shall be inserted to cross member. Install its
metal tube to rear final drive assembly and direct the metal tube
hose side end to the front of vehicle.

When oil leaks while removing final drive assembly, check oil
level after the installation. Refer to RFD-8, "
Checking Differential
Gear Oil" .
PDIA0436E
PDIA0437E

REAR FINAL DRIVE ASSEMBLY
RFD-17
C
E
F
G
H
I
J
K
L
MA
B
RFD

Pre-InspectionEDS001ZC
TOTAL PRELOAD
1. Drain the oil.
2. Remove electric controlled coupling assembly. Refer to RFD-22, "
Removal of Electric Controlled Coupling
Assembly" .
3. Rotate the drive pinion back and forth in 2 to 3 times to check for unusual noise and rotation malfunction.
4. Rotate the drive pinion at least 20 times to check for smooth
operation of the bearing.
5. Fit the drive pinion socket onto the drive pinion spline. Using the
preload gauge below, measure the total preload.

If outside the standard, disassemble, check, and adjust each
part. Adjust the pinion bearing and side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.
Side bearing adjusting shims
*: Always check with the Parts Department for the latest parts information.
Tool number A: ST3127S000
B: KV38108500
Total preload
:1.33 - 2.15 N·m (0.14 - 0.21 kg-m, 12 - 19 in-lb)
Side bearing preload
: 0.64-0.98 N·m (0.07 - 0.09 kg-m, 6 - 8 in-lb)
When the preload torque is large
On pinion bearings : Replace the collapsible spacer.
On side bearings : Use thinner side bearing adjusting shims.
When the preload is small
On pinion bearings : Tighten the pinion nut.
On side bearings : Use thicker side bearing adjusting shims.
PDIA0048E
Thickness Part number* Thickness Part number*
1.85 mm (0.0728 in)
1.90 mm (0.0748 in)
1.95 mm (0.0768 in)
2.00 mm (0.0787 in)38453 4N200
38453 4N201
38453 4N202
38453 4N2032.05 mm (0.0807 in)
2.10 mm (0.0827 in)
2.15 mm (0.0854 in)
2.20 mm (0.0866 in)38453 4N204
38453 4N205
38453 4N206
38453 4N207

RFD-18
REAR FINAL DRIVE ASSEMBLY

DRIVE GEAR TO DRIVE PINION BACKLASH
1. Drain the oil.
2. Remove the rear cover. Refer to RFD-22, "
Removal of Differential Assembly" .
3. Following the procedure below, install a dummy cover set to the
carrier case.
a. Fit dummy cover shims to the right and left side bearing adjust-
ing shims.
b. Temporarily tighten a dummy cover to the carrier case.
c. Position a dummy cover spacer to the dummy cover.
d. Tighten rear cover mounting bolts to the specified torque. Refer to RFD-16, "
Components" .
e. Tighten dummy cover spacer mounting bolts evenly to the specified torque.
4. Fit a dial indicator to the drive gear face to measure the back-
lash.

If outside the standard, change the thickness of the side bearing
adjusting shims.
Side bearing adjusting shims
*: Always check with the Parts Department for the latest parts information.
Tool Number : KV389L0010
PDIA0474E
: 5.9 N·m (0.6 kg-m, 52 in-lb)
Backlash : 0.10 - 0.15 mm (0.0039 - 0.0059 in)
Tool number : KV389L0010
PDIA0049E
When the backlash is large:
Make the drive gear back adjusting shims thicker, and the drive gear front adjusting
shims thinner.
When the backlash is small:
Make the drive gear back adjusting shims thinner, and the drive gear front adjusting
shims thicker.
Thickness Part number* Thickness Part number*
1.85 mm (0.0728 in)
1.90 mm (0.0748 in)
1.95 mm (0.0768 in)
2.00 mm (0.0787 in)38453 4N200
38453 4N201
38453 4N202
38453 4N2032.05 mm (0.0807 in)
2.10 mm (0.0827 in)
2.15 mm (0.0854 in)
2.20 mm (0.0866 in)38453 4N204
38453 4N205
38453 4N206
38453 4N207