Infiniti QX56 (JA60). Manual — part 325
FRONT FINAL DRIVE
DLN-223
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: M205]
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• Keep side bearing outer races together with side bearing inner races. Do not mix them up.
12. For proper reinstallation, paint matching marks on the differential
case and drive gear.
CAUTION:
Use paint for matching marks. Do not damage differential
case or drive gear.
13. Remove the drive gear bolts.
14. Tap the drive gear off the differential case using suitable tool.
CAUTION:
Tap evenly all around to keep drive gear from bending.
15. Remove the lock pin of the pinion mate shaft from the drive gear
side using suitable tool.
16. Remove the pinion mate shaft.
17. Turn the pinion mate gear, then remove the pinion mate gear,
pinion mate thrust washer, side gear and side gear thrust
washer from the differential case.
Drive Pinion Assembly
1. Remove the differential assembly.
PDIA0496E
SPD025
SDIA0031J
SDIA0032J
DLN-224
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
2. Remove the drive pinion lock nut using suitable tool.
3. Put matching marks on the companion flange and drive pinion using paint.
CAUTION:
Use paint to make the matching marks. Do not damage the companion flange or drive pinion.
4. Remove the companion flange using suitable tool.
5. Press the drive pinion assembly (with rear inner bearing race
and collapsible spacer) out of the gear carrier.
CAUTION:
Do not drop drive pinion assembly.
6. Remove the drive pinion rear bearing inner race and drive pinion
height adjusting washer using Tool.
PDIA0702E
PDIA0703E
SDIA2234E
Tool number
: ST30021000 ( — )
S-PD179
FRONT FINAL DRIVE
DLN-225
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: M205]
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7. Place a small hole in the front oil seal case using suitable tool.
8. Remove the front oil seal using Tool as shown.
9. Remove the drive pinion front bearing inner race.
10. Remove the drive pinion front bearing outer race using Tool as
shown. Locate the driver on the back edge of the drive pinion
front bearing outer race, then drive the drive pinion front bearing
outer race out.
CAUTION:
Do not damage gear carrier.
11. Remove the drive pinion rear bearing outer race using Tool as
shown. Locate the driver on the back edge of the drive pinion
rear bearing outer race, then drive the drive pinion rear bearing
outer race out.
CAUTION:
Do not damage gear carrier.
INSPECTION AFTER DISASSEMBLY
Clean the disassembled parts. Then inspect the parts for wear or damage. If wear or damage are found, follow
the measures below.
Drive Pinion and Drive Gear
• If the drive pinion and drive gear teeth do not mesh or line-up correctly, determine the cause and adjust,
repair, or replace as necessary.
• If the drive pinion or drive gear are worn, cracked, damaged, pitted or chipped (by friction) noticeably,
replace with new drive pinion and drive gear.
LDIA0129E
Tool number
: SP8P
LDIA0130E
Tool number
A: C-4171
B: D-103
LDIA0131E
Tool number
A: C-4171
B: C-4307
LDIA0132E
DLN-226
< DISASSEMBLY AND ASSEMBLY >
[FRONT FINAL DRIVE: M205]
FRONT FINAL DRIVE
• Drive pinion and drive gear are supplied in matched sets only. Matching numbers on both drive pinion and
drive gear are etched for verification. If a new drive pinion and drive gear set are being used, verify the num-
bers of each drive pinion and drive gear before proceeding with assembly.
Bearing
• If bearings are chipped (by friction), pitted, worn, rusted, scratched, or unusual noise is coming from bearing,
replace with new bearing assembly (as a new set).
• Bearing must be replaced with a new one whenever disassembled.
Side Gear and Pinion Mate Gear
• If any cracks or damage are found on the surface of the teeth, replace with new one.
• If any worn or chipped marks are found on the side of the side gear and pinion mate gear which contact the
thrust washer, replace with new one.
• Replace both side gear and pinion mate gear as a set when replacing side gear or pinion mate gear.
Side Gear Thrust Washer and Pinion Mate Thrust Washer
• If any chips (by friction), damage, or unusual wear are found, replace with new one.
Gear Carrier
• If any wear or cracks are found on the contact sides of gear carrier, replace with new one.
Companion Flange
• If any chips (about 0.1mm, 0.004 in) or other damage on the companion flange surface which contacts the
front oil seal lips are found, replace with new one.
ADJUSTING AND SELECTING WASHERS
Side Gear Back Clearance
• Assemble the differential parts if they are disassembled.
1. Place the differential case straight up so that the side gear to be
measured is upward.
PDIA0460E
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