Diff cover NISSAN 350Z 2007 Z33 Rear Final Drive User Guide

REAR FINAL DRIVE ASSEMBLY
RFD-41
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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
RFD-55
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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