Isuzu N-Series. Manual — part 195
FRONT AXLE 4C-75
Differential Cage Assembly
Legend
1. Differential cage B
5. Differential pinion
2. Side gear
6. Side gear
3. Thrust washer
7. Thrust washer
4. Spider
8. Differential cage A and ring gear
N4A0412E
4C-76 FRONT AXLE
Disassembly
1. Differential Cage B
Apply a setting mark (1) to the differential cage as-
sembly.
2. Side Gear
3. Thrust Washer
4. Spider
5. Differential Pinion
6. Side Gear
7. Thrust Washer
8. Differential Cage A and Ring Gear
Inspection and Repair
Make necessary correction or parts replacement if wear,
damage or any other abnormal conditions are found
through inspection.
Visual Check
Inspect the following parts for wear, damage or other ab-
normal conditions.
• Gear
• Bearing
• Oil seal
• Differential cage
• Drive pinion cage
• Parts organizing limited slip differential assembly
Ring Gear Replacement
The ring gear should always be replaced with drive pin-
ion as a set.
When installing ring gear, apply stud lock to the thread-
ed holes and bolts after treatment of the bolts with prim-
er N.
Tighten:
Ring gear bolt to 127 N
⋅m (13.0 kg⋅m / 94 lb⋅ft)
Clearance between Differential Pinion and Spider
Standard: 0.07 — 0.13 mm (0.003 — 0.005 in)
Limit: 0.2 mm (0.008 in)
Clearance between Side Gear and Differential Cage
Standard: 0.05 — 0.11 mm (0.002 — 0.004 in)
Limit: 0.25 mm (0.01 in)
N4A0171E
N4A0173E
N4A0174E
FRONT AXLE 4C-77
Play in Splines between Side Gear and Axle Shaft
Standard: 0.02 — 0.12 mm (0.0008 — 0.005 in)
Limit: 0.25 mm (0.01 in)
Reassembly
1. Differential Cage A and Ring Gear
2. Thrust Washer
3. Side Gear
4. Differential Pinion
5. Spider
6. Thrust Washer
7. Side Gear
8. Differential Cage B
1) Apply oil to the threaded portion of the bolts be-
fore installation.
2) Fasten the differential cages A and B so that
the setting marks (1) are correctly aligned.
Tighten:
Differential cage bolt to 78 N
⋅m (8.0 kg⋅m / 58 lb⋅ft)
3) Measure the clearance between the back face
of the side gear and the differential cage B by
inserting a feeler gauge (1) through the hole on
the cage B.
Clearance: 0.13 — 0.18 mm (0.005 — 0.007 in)
When the clearance exceed a limit, replace the
thrust washer or side gear.
Legend
1. Side gear
2. Differential cage
N4A0175E
N4A0176E
N4A0413E
N4A0177E
International Service & Parts
Tokyo, Japan
WORKSHOP MANUAL
N-SERIES
BRAKES
SECTION 5
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