Opel Frontera UBS. Manual - part 998

4A2B–8

DIFFERENTIAL (REAR 244mm)

7. Remove the parking brake cable mounting

bolts(Behind the back plate)(1).

311RS001

8. Remove the bearing holder mounting nuts.
9. Remove axle shaft assembly.

NOTE: Be sure not to damage the oil seal.

10. Remove snap ring.

11. Using a bearing remover 5–8840–2295–0 and press,

remove retainer together with the bearing holder.

420RY00012

12. Remove bearing.
13. Remove bearing holder.
14. Remove back plate.

15. Remove the wheel pins using a remover

5–8840–0029–0.

420RY00011

Inspection and Repair

Make necessary correction or parts replacement if wear,
corrosion or any other abnormal conditions are found
through inspection.

Visual Check:

Check the following parts for wear, damage, noise or any
other abnormal conditions:

1. Axle shaft
2. Bearing

When checking the axle shaft, pay special attention to the
splined portions and replace the shaft if distortion or step
wear is noticeable.  Correct slight step wear with a grinder.

420RS008

DIFFERENTIAL (REAR 244mm)

4A2B–9

Axle Shaft Run–out

Limit: 1.0 mm (0.039 in)

420RS009

Axle Shaft Flange Run–out

Limit: 0.08 mm (0.003 in)

420RS010

Oil Seal Replacement

Remove the oil seal carefully not to damage the bearing
holder bore .
When installing, use oil seal installer 5–8840–2310–0.

420RY00009

Installation

1. Install wheel pin.
2. Install back plate.
3. Install bearing holder.
4. Install bearing.
5. Install retainer by using a bearing installer

5–8840–2296–0, press fit together with the bearing.

420RY00010

4A2B–10

DIFFERENTIAL (REAR 244mm)

6. Install snap ring.
7. Install axle shaft assembly.

NOTE: Be sure not to damage the oil seal.

8. Tighten the bearing holder mounting nut to the

specified torque.

Torque: 74N·m (54 Ib ft) 

9. Fix the parking brake cable mounting bolt (Behind the

back plate).

10. Install parking brake assembly, refer to Parking

Brakes in Brake section.

11. Install antilock brake system sensor.

12. Install brake disc.
13. Install brake caliper, refer to Disk Brakes in Brake

section.

Pinion Oil Seal

Pinion Oil Seal and Associated Parts

425RY00010

Legend

(1) Flange Nut and Washer
(2) Flange

(3) Oil Seal
(4) Outer Bearing
(5) Collapsible Spacer

Removal

1. Remove the rear propeller shaft.  Refer to Rear

Propeller Shaft in this section.

2. Drain the rear axle oil.

DIFFERENTIAL (REAR 244mm) 4A2B–11

3. Remove flange nut and washer by using pinion flange

holder 5–8840–0133–0 after raising up its staked
parts completely.

415RW040

4. Remove flange.
5. Remove oil seal.
6. Remove outer bearing by using remover

5–8840–2323–0.

425RY00003

7. Remove collapsible spacer.

Inspection and Repair

Make necessary correction or parts replacement if wear,
damage, corrosion or any other abnormal conditions are
found through inspection.
Check the following parts:

1. Seal surface of the pinion.
2. Cage bore for burns.

Installation

1. Install collapsible spacer, discard the used collapsible

spacer and install a new one.

2. Install outer bearing.

NOTE: Do not drive in, but just temporarily set in the outer
bearing by hand, which should be indirectly pressed in
finally by tightening the flange nut.

3. By using the seal installer 5–8840–2165–0, install a

new oil seal (1) that has grease on seal lip.

425RW050

4. Install flange.
5. Install flange nut and washer. Refer to Differential

Assembly in this section for flange nut reassembly.

NOTE: Discard the used nut and install a new one.