Isuzu N-Series. Manual - part 167

REAR AXLE 4B-25

12. Outer Oil Seal

Apply grease to the oil seal lip inner and outer cir-
cumferences.

13. Axle Shaft

1) Clean the axle shaft.
2) Apply gear oil to the axle shaft spline.
3) Insert the axle shaft into the axle case.

Take care not to damage the oil seal.

4) Tighten the axle shaft nuts to the specified

torque a little at a time in the numerical order
shown in the illustration.

Tighten:
Axel shaft nut to 46 N

⋅m (4.7 kg⋅m / 34 lb⋅ft)

14. Wheel and Tire

Tighten:
Wheel nut to

• NHR Dual Tire, NKR NPR Flat low: 343 N

⋅m (35 kg⋅m

/ 253 lb

⋅ft)

• Except above models: 490 N

⋅m (50 kg⋅m / 361 lb⋅ft)

• NHR, NKR, S/Tire: 167 N

⋅m (17 kg⋅m / 123 lb⋅ft)

N4A0119E

N4A0120E

4B-26 REAR AXLE

Rear Axle Assembly

Legend

1. Rear flexible hose

4. Nut and washer

2. Rear propeller shaft

5. U-bolt

3. Rear shock absorber

6. Rear axle assembly

N4A0122E

REAR AXLE 4B-27

Removal

Preparation:
Jack up and support the vehicle on stands.

1. Rear Flexible Hose

Loosen the nut (1), then ply off a clip (2).

2. Rear Propeller Shaft
3. Rear Shock Absorber

Remove the shock absorber lower end.

4. Nut and Washer

If the U-bolt are heavily rusted, apply a generous
amount of oil to the threads when turning them
loose the prevent seizure.

5. U-bolt
6. Rear Axle Assembly

Move to the rear axle side.

Installation

1. Rear Axle Assembly
2. U-bolt
3. Nut and Washer

When tightening the nuts apply oil as necessary to
prevent damaging the threads.

Tighten:
U-bolt nut

• NQR: 294 N

⋅m (30 kg⋅m / 217 lb⋅ft)

• Except NQR: 177 N

⋅m (18 kg⋅m / 130 lb⋅ft)

4. Rear Shock Absorber

Refer to the drawing for parts installation.

Tighten:
Shock absorber lower nut

• NHR, NKR single tire: 61 N

⋅m (6.2 kg⋅m /45 lb⋅ft)

• NKR dual tire: 95 N

⋅m (9.7 kg⋅m / 70 lb⋅ft)

• NPR, NQR, NPS: 40 N

⋅m (4.1 kg⋅m / 30 lb⋅ft)

N4A0123E

N4A0124E

N4A0125E

N4A0126E

4B-28 REAR AXLE

5. Rear Propeller Shaft

Connect the propeller shaft assembly after tighten-
ing U-bolt nuts.

Tighten:
Propeller shaft nut 

• M10: 63 N

⋅m (6.4 kg⋅m / 46 lb⋅ft)

• M12: 103 N

⋅m (10.5 kg⋅m / 76 lb⋅ft)

6. Rear Flexible Hose

To install, follow the disassemble procedure in re-
verse order.

Tighten:
Flare nut to 16 N

⋅m (1.6 kg⋅m / 12 lb⋅ft)

Perform bleeding operation after installation of the
brake flexible hoses.
Refer to Section 5 “Service information” for brake
oil air bleeding procedure.

Legend

1. Rubber bushing

N4A0127E

N4A0128E

N4A0129E