2007 NISSAN 350Z Diff cover

REAR FINAL DRIVE ASSEMBLY
RFD-39
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Revision: 2006 November2007 350Z
Disassembly and Assembly (R200V LSD)NDS0000K
COMPONENTS
1. Drive pinion lock nut 2. Companion flange 3. Front oil seal
4. Pinion front bearing 5. Gear carrier 6. Side oil seal
7. Side flange 8. Collapsible spacer 9. Pinion rear bearing
10. Pinion height adjusting washer 11. Drive pinion 12. Side bearing adjusting washer
13. Side bearing 14. Drive gear 15. Differential case B
16. Side gear thrust washer 17. Circular clip 18. Side gear
19. Pinion mate shaft 20. Pinion mate thrust washer 21. Pinion mate gear
22. Viscous coupling 23. Differential case A 24. Bearing cap
25. Filler plug 26. Gasket 27. Rear cover
28. Drain plug
A: Oil seal lip
B: Screw hole
C: After tightening the bolts to the specified torque, tighten the bolts additionally by turning the bolts 31 to 36 degrees.
Refer to GI-11, "
Components" and the followings for the symbols in the figure.
:Apply gear oil.
:Apply anti-corrosion oil.
:Apply Genuine Silicone RTV or equivalent. Refer to GI-45, "
Recommended Chemical Products and Sealants" .
:Apply Genuine High Strength Thread Locking Sealant or equivalent. Refer to GI-45, "
Recommended Chemical Prod-
ucts and Sealants" .
PDIA1135E

RFD-40
REAR FINAL DRIVE ASSEMBLY
Revision: 2006 November2007 350Z
ASSEMBLY INSPECTION AND ADJUSTMENT

Before inspection and adjustment, drain gear oil.
Total Preload Torque
1. Secure final drive assembly onto an attachment.
2. Remove side flanges.
3. Rotate drive pinion back and forth 2 to 3 times to check for unusual noise and rotation malfunction.
4. Rotate drive pinion at least 20 times to check for smooth opera-
tion of the bearing.
5. Measure total preload with the preload gauge.
NOTE:
Total preload torque = Pinion bearing preload torque + Side
bearing preload torque

If measured value is out of the specification, disassemble it to
check and adjust each part. Adjust the pinion bearing preload and side bearing preload.
Adjust the pinion bearing preload first, then adjust the side bearing preload.
Drive Gear Runout
1. Remove rear cover. Refer to RFD-44, "Differential Assembly" .
2. Fit a dial indicator to the drive gear back face.
3. Rotate the drive gear to measure runout.

If the runout is outside of the repair limit, check drive gear
assembly condition; foreign material may be caught between
drive gear and differential case, or differential case or drive gear
may be deformed, etc.
CAUTION:
Replace drive gear and drive pinion gear as a set.Tool number : KV38100800 (J-25604-01)
Tool number : ST3127S000 (J-25765-A)
Total preload torque:
2.85 – 3.75 N·m (0.29 – 0.38 kg-m, 26 – 33 in-lb)
PDIA0635E
When the preload torque is large
On pinion bearings: Replace the collapsible spacer.
On side bearings: Use thinner side bearing adjusting washers by the same amount to
each side. Refer to RFD-60, "
Side Bearing Adjusting Washer" .
When the preload is small
On pinion bearings: Tighten the drive pinion lock nut.
On side bearings: Use thicker side bearing adjusting washers by the same amount to
each side. Refer to RFD-60, "
Side Bearing Adjusting Washer" .
Runout limit: 0.05 mm (0.0020 in) or less
SPD886

REAR FINAL DRIVE ASSEMBLY
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Revision: 2006 November2007 350Z
Tooth Contact
1. Remove rear cover. Refer to RFD-44, "Differential Assembly" .
2. Apply red lead to drive gear.
CAUTION:
Apply red lead to both the faces of 3 to 4 gears at 4 loca-
tions evenly spaced on drive gear.
3. Rotate drive gear back and forth several times, check drive pin-
ion gear to drive gear tooth contact.
CAUTION:
Check tooth contact on drive side and reverse side.
SPD357
SDIA0570E
SDIA0207E

RFD-42
REAR FINAL DRIVE ASSEMBLY
Revision: 2006 November2007 350Z
4. If tooth contact is improperly adjusted, follow the procedure
below to adjust the pinion height (dimension X).

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 RFD-60, "
Pinion Height Adjusting Washer" .

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 RFD-60, "
Pinion Height Adjusting Washer" .
Backlash
1. Remove rear cover. Refer to RFD-44, "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
thickness of side bearing adjusting washer.
CAUTION:
Do not change the total amount of washers as it will change the bearing preload.
SDIA0517E
PDIA0440E
PDIA0441E
Backlash: 0.10 – 0.15 mm (0.0039 – 0.0059 in)
When the backlash is large:
Make drive gear back side adjusting washer thicker,
and drive gear tooth side adjusting washer thinner by
the same amount. Refer to RFD-60, "
Side Bearing
Adjusting Washer" .
When the backlash is small:
Make drive gear back side adjusting washer thinner,
and drive gear tooth side adjusting washer thicker by
the same amount. Refer to RFD-60, "
Side Bearing
Adjusting Washer" .
SPD513

RFD-44
REAR FINAL DRIVE ASSEMBLY
Revision: 2006 November2007 350Z
DISASSEMBLY
Differential Assembly
1. Drain gear oil, if necessary.
2. Remove side flange.
3. Remove rear cover mounting bolts.
4. Remove rear cover to insert the seal cutter between gear carrier
and rear cover.
CAUTION:

Be careful not to damage the mating surface.

Do not insert flat-bladed screwdriver, this way damage
the mating surface.
5. Using two 45 mm (1.77 in) spacers, mount carrier on the attach-
ment.
6. For proper reinstallation, paint matching marks on one side of
the bearing cap.
CAUTION:

For matching marks, use paint. Do not damage bearing
caps and gear carrier.

Bearing caps are line-board during manufacture. The
matching marks are used to reinstall them in their origi-
nal positions.
7. Remove bearing caps.Tool number : KV10111100 (J-37228)
PDIA0491E
Tool number : KV38100800 (J-25604-01)
SPD888
PDIA0069E
S-PD343

REAR FINAL DRIVE ASSEMBLY
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Revision: 2006 November2007 350Z
10. Apply anti-corrosion oil to the thread and seat of drive pinion
lock nut, and temporarily tighten drive pinion lock nut to drive
pinion.
CAUTION:
Do not reuse drive pinion lock nut.
11. Adjust to the drive pinion lock nut tightening torque and pinion
bearing preload torque.
CAUTION:

Adjust to the lower limit of the drive pinion lock nut tight-
ening torque first.

If the preload torque exceeds the specified value, replace
collapsible spacer and tighten it again to adjust. Do not
loosen drive pinion lock nut to adjust the preload torque.

After adjustment, rotate drive pinion back and forth 2 to 3 times to check for unusual noise, rota-
tion malfunction, and other malfunctions.
12. Install differential case assembly. Refer to RFD-44, "
Differential Assembly" .
CAUTION:
Do not install rear cover yet.
13. Check and adjust drive gear runout, tooth contact, drive gear to drive pinion backlash, and companion
flange runout. Refer to RFD-40, "
Drive Gear Runout" , RFD-41, "Tooth Contact" , RFD-42, "Backlash" and
RFD-43, "
Companion Flange Runout" .
Recheck above items. Readjust the above description, if necessary.
14. Check total preload torque. Refer to RFD-40, "
Total Preload Torque" .
15. Install rear cover. Refer toRFD-44, "
Differential Assembly" .
Differential Assembly
1. Install side gear thrust washer with the same thickness as the
ones installed prior to disassembly or reinstall the old ones on
the side gear.Tool number A: KV40104000 ( — )
B: ST3127S000 (J-25765-A)
Drive pinion lock nut tightening torque:
147 – 323 N·m (15 – 32 kg-m, 109 – 238 ft-lb)
Drive pinion bearing preload:
2.65 – 3.23 N·m (0.27 – 0.32 kg-m, 24 – 28 in-lb)
PDIA0636E
SDIA0196J