Opel Frontera UE. Manual - part 79

DIFFERENTIAL (REAR)

4A2–9

4. Install bearing assembly, using installer and press.

420RS030

NOTE:  Install bearing with cup towards inboard side.

420RS031

5. Install retainer ring, using installer and press.

420RS033

6. Install snap ring.

7. Install axle shaft assembly into housing.

8. Install bolts, lockwashers, and nuts.

Tighten the retainer nuts to the specified torque.

Torque : 75N·m (7.6kg·m/55lbft)

4A2–10

DIFFERENTIAL (REAR)

Pinion Oil Seal

Pinion Oil Seal and Associated Parts

420RW013

Legend

EndOFCallout

Removal

1. Remove the rear propeller shaft.  Refer to Rear 

Propeller Shaft in this section.

2. Drain the rear axle oil.

3. Check and record preload with an inch pound 

torque wrench. This will give combined pinion 
bearing, seal, carrier bearing, axle bearing and seal 
preload.

425RW018

(1) Flange Nut and Washer
(2) Flange
(3) Oil Seal

(4) Outer Oil Seal Slinger
(5) Outer Pinion Bearing (Cup and Cone)

DIFFERENTIAL (REAR)

4A2–11

4. Remove flange nut and washer by using pinion 

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

425RW070

5. Remove flange by using 5–8840–0133–0.

• Have a suitable container in place to catch 

lubricant.

425RW071

6. Remove oil seal.

7. Remove pinion oil seal slinger.

8. Remove outer bearing by using remover 5–8840–

2323–0.

425RW072

9. Remove collapsible spacer.

Inspection and Repair

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

1. Seal surface of the flange.

2. Cage bore for burns.

Installation

1. Install collapsible spacer, discard the used 

collapsible spacer and install a new one.

2. Install outer bearing.

4A2–12

DIFFERENTIAL (REAR)

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. The pinion washer and a new nut while holding the 

pinion flange with 5–8840–0133–0.

• Tighten the nut until the pinion end play is just 

taken up. Rotate the pinion while tightening the 
nut to seat the bearings. Once there is not end 
play in the pinion, the preload torque should be 
checked.

• Remove 5–8840–0133–0. Using an inch-pound 

torque wrench, check to make sure the pinion 
preload is equal to or slightly over the reading 
recorded during removal.

425RW018

6. Install propeller shaft to the frange.

7. Install bolt and nut. Tighten the bolt and nut to the 

specified torque.

Torque: 63N·m (6.4kg·m/46lbft)