Opel Frontera UBS. Service manual — part 125

4A2B–20

DIFFERENTIAL (REAR 244mm)

Differential Cage Assembly

Disassembled View

415RW010

Legend

(1) Thrust Washer (for Pinion Gear)
(2) Pinion Mate Gear
(3) Thrust Washer(for Side Gear)
(4) Side Gear

(5) Differential Shaft
(6) Ring Gear
(7) Bolt
(8) Differention Cage
(9) Lock Pin

DIFFERENTIAL (REAR 244mm) 4A2B–21

Disassembly

1. Remove bolt.
2. Remove ring gear.
3. Remove lock pin using a small drift.

425RS042

4. Remove the differential shaft by using a hard metal

rod and a hammer.

425RS043

5. Remove pinion mate gear and thrust washer.
6. Remove side gear and thrust washer.

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:

D

Ring gear, pinion gear

D

Bearing

D

Side gear, pinion mate gear, differential shaft

D

Differential cage, carrier

D

Thrust washer

D

Oil seal

Ring gear replacement:

1. The ring gear should always be replaced with the

drive pinion as a set.

2. Discard used bolts and install new ones.
3. Tighten the fixing bolts in a diagonal sequence as

illustrated.

Torque: 177N·m (18.0kg·m/130 lb ft)

425RW033

Reassembly

425RS048

1. Install side gear with thrust washer.

4A2B–22

DIFFERENTIAL (REAR 244mm)

2. Install the pinion mate gear with thrust washer by

engaging it with the side gears while turning both
pinion mate gears simultaneously in the same
direction.

425RS048

3. Install differential shaft.

1. Be sure to install the differential shaft so that it is in

alignment with the lock pin hole in the differential
cage.

425RS049

4. Install lock pin.

After lock pin installation, stake the case to secure the
lock pin.

5. Install ring gear.

6. Tighten the bolts in diagonal sequence as illustrated.

Torque: 177N·m (18.0kg·m/130 lb ft)

NOTE: Discard used bolts and install new ones.

425RW033

DIFFERENTIAL (REAR 244mm) 4A2B–23

Locking Differential Assembly

Disassembled View

425RW027

Legend

(1) Thrust Washer–Differential Pinion Mate Gear
(2) Pinion Mate Gear
(3) Dished Spacer
(4) Disc
(5) Plate
(6) Ring Gear

(7) Differential Plate Retainer
(8) Lock Pin
(9) Differential Case

(10) Ring Gear Bolts

(11) Differential Shaft

(12) Differential Side Gear

Disassembly

1. Remove ring gear.
2. Place one of the axle shafts, which was removed from

the assembly, into a vise. Tighten shaft in vise firmly.
The spline end of the shaft is not to exceed 3 inches
(76.2 mm) above the top of the vise.
Position the differential on the shaft with the ring gear
side down.

3. Remove Lock pin (1) from differential shaft using a

punch.