1998 OPEL FRONTERA Differential oil

4A2B–6DIFFERENTIAL (REAR 244mm)
11. Install the lateral rod fixing nut to the axle housing.
12. Install the stabilizer linkage mounting nut to the axle
housing.
13. Install the shock absorber fixing nut to the axle
housing.
14. Install brake tube flare nut, Refer to Disk Brakes in
Brake section.15. Install ABS connector and bracket (if so equipped).
16. Connect breather hose.
17. Install parking brake cable, Refer to Parking Brakes in
Brake section.
18. Bleed brakes. Refer to Hydraulic Brakes in Brake
section.
Pinion Oil Seal
Pinion Oil Seal and Associated Parts
425RW043
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–7
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.
425RW066
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.

4A2B–8DIFFERENTIAL (REAR 244mm)
Differential Assembly
Differential Assembly and Associated Parts
425RW044
Legend
(1) Bolt and Nut
(2) Axle Shaft Assembly(3) Parking Brake Cable
(4) Differential Assembly
(5) Nut
Removal
1. Jack up and support the frame with stands.
2. Remove the wheel and tire. Refer to Wheel in
Steering section.
3. Drain the differential oil.
4. Remove the propeller shaft. Refer to Rear Propeller
Shaft in this section.
5. Remove the ABS speed sensor. Refer to Anti–lock
Brake System in Brakes section.6. Remove the parking brake cable fastening clip and
disconnect the equalizer section. Refer to Parking
Brakes in Brake section.
7. Remove the bearing holder fixing nuts.
8. Remove axle shaft assembly, be sure not to damage
the oil seal by axle shaft.
9. Remove differential carrier mounting bolts and nuts.
10. Remove differential assembly.

DIFFERENTIAL (REAR 244mm)
4A2B–9
Installation
1. Clean the contact surfaces of the axle and differential
carrier. As shown in the drawing, apply Three Bond
TB1215 or equivalent then install differential
assembly.
425RS006
2. Install bolt and nut. Tighten the differential carrier
mounting bolts and nuts to the specified torque.
Torque:Nuts 44Nꞏm (4.5kgꞏm/33 lb ft)
Bolts 64Nꞏm (6.5kgꞏm/47 lb ft)
3. Install axle shaft assembly. Be sure not to damage
the oil seal by axle shaft.
4. Install nut, refer to Axle Shaft in this section.
5. Install parking brake cable, refer to Parking Brakes in
Brake section.
NOTE: After completing the assembling work, fill the
prescribed gear oil to the filler hole.
Lubricant capacity: 3.0 liter (2.6 Imp qt/3.2
US qt)
6. Tighten the oil filler plug to the specified torque.
Torque: 78Nꞏm (8.0kgꞏm/58 lb ft)

4A2B–10DIFFERENTIAL (REAR 244mm)
Disassembled View
415RW002
Legend
(1) Flange Nut and Washer
(2) Flange
(3) Oil Seal
(4) Oil Seal Slinger
(5) Outer Bearing
(6) Outer Bearing Outer Race
(7) Diff Carrier
(8) Bearing Cap
(9) Bolt(10) Inner Bearing Outer Race
(11) Collapsible Spacer
(12) Inner Bearing
(13) Adjust Shim (Pinion Position)
(14) Drive Pinion Shaft
(15) Adjust Shim (Diff Cage Assembly)
(16) Diff Preload/Backlash
(17) Side Bearing
(18) Side Bearing Outer Race

4A2B–12DIFFERENTIAL (REAR 244mm)
8. Removed flange assembly.
9. Remove the drive pinion assembly using a soft metal
rod and a hammer.
425RS012
10. Remove collapsible spacer.
11. Remove the inner bearing by using remover
5–8840–2587–0. Select insert 303174 and collet
halves 44803 in remover kit 5–8840–2587–0 for inner
bearing removal.
415RW042
12. Remove adjust shim.
13. Remove oil seal.
14. Remove oil seal slinger.
15. Remove outer bearing.
16. Remove the inner bearing outer race (1) and the outer
bearing outer race (2) by using a brass bar and a
hammer.
425RS014
425RS015

DIFFERENTIAL (REAR 244mm)
4A2B–13
Reassembly
1. Install outer bearing outer race by using installer
5–8840–0008–0 and grip 5–8840–0007–0.
425RW059
2. Install inner bearing outer race by using installer
5–8840–2571–0 and grip 5–8840–0007–0.
425RW060
3. Adjust the drive pinion mounting distance as follows:
1. Apply gear oil to the inner and outer drive pinion
bearing. Clean the pinion setting gauge set.
Then install the gauge set together with the inner
and outer bearings.
Install gauge plate 5–8840–2572–0 (3), inner pilot
5–8840–2573–0 (2) ,stud and nut 5–8840–0127–0
(4) and outer pilot 5–8840–2575–0 (1) through inner
and outer bearings.2. Tighten the nut to the specified torque.
Torque: 2.3 Nꞏm (23kgꞏcm/20 lb in)
425RW030
3. Clean the side bearing bores. Place discs and dial
indicator on to arbor, and place tool into position in
side bearing bores. Install and tighten the bearing
caps to the specified torque.
425RW031
Legend
(1) Dial Indicator: 5–8840–0126–0
(2) Gauge Plate: 5–8840–2572–0
(3) Disc (2 pcs.): 5–8840–2577–0
(4) Arbor: 5–8840–0128–0

4A2B–16DIFFERENTIAL (REAR 244mm)
4. Place the shim (1) on the drive pinion, then install the
inner bearing (2) onto the pinion by using installer
5–8840–2574–0 and a press .
NOTE: Do not apply pressure to the roller cage. Apply
pressure only to the inner race.
425RW061
5. Install collapsible spacer. Discard the used
collapsible spacer and install a new one.
6. Install drive pinion shaft assembly.
7. Install outer bearing and oil seal slinger.
8. Use oil seal installer 5–8840–2165–0 to install a new
oil seal that has grease on seal lip.
415RW029
9. Install flange assembly.10. Install flange nut and washer.
1. Apply lubricant to the pinion threads.
2. Using the pinion flange holder 5–8840–0133–0,
tighten the nut only enough to remove the shaft
end play.
NOTE: Discard used flange nut and install new one.
415RW006
3. Adjust pinion bearing preload.
a. Measure the bearing preload by using a torque
meter and note the scale reading required to
rotate the flange.
b. Continue tightening flange nut until the specified
starting torque is obtained.
Starting torque: 1.1–1.6 Nꞏm (11–16kgꞏcm/10–14
lb in)
NOTE:
a. Do not overtighten or loosen and then retighten the
nut.
b. Pinion nut torque should be in the range of
298–380 Nꞏm (30.4–38.8kgꞏm/220–281 Ib ft).
425RW018