torque OPEL FRONTERA 1998 Workshop Manual

4A2B–6DIFFERENTIAL (REAR 244mm)
8. Disconnect the ABS connectors (1) and remove the
brackets (2) (if so equipped) attached to the frame
and center link.
350RS001
9. Loosen the brake tube flare nut, remove the clip and
take out the brake tube.
10. Remove the shock absorber fixing nut from the axle
housing.
11. Remove the stabilizer linkage mounting nut from the
axle housing.
12. Remove the lateral rod fixing nut from the axle
housing.
13. Remove the center link mounting bolt and nut from
the axle housing.
14. Remove the trailing link fixing bolt and nut from the
axle housing.
15. Jack down and remove the coil spring and insulator.
16. Axle housing assembly can be separated from the
vehicle on completion of steps 1 – 11.
17. Remove the brake caliper fixing bolt (3), loosen the
flare nut (1), release the clip (2) and take out the brake
caliper together with the flexible hose.
306RS001
18. Remove brake disc.
19. Remove antilock brake system speed sensor fixing
bolt and the clip and bracket (if so equipped) on the
axle housing.
20. Remove the brake pipe clip and fixing bolt on the axle
housing and take out the brake pipe.
21. Remove the bearing holder fixing nut and take out the
axle shaft assembly, be sure not to damage the oil
seal by the spline of the shaft, Refer to Axle Shaft in
this section.
22. Remove differential assembly, refer to Differential
Assembly in this section.
Oil Seal Replacement
Remove the oil seal, carefully not to damage the housing,
and mount new oil seal using oil seal installer
5–8840–2294–0
420RW028
Installation
1. Install differential assembly, refer to Differential
Assembly in this section.
2. Install axle shaft assembly then tighten the bearing
holder mounting nut to the specified torque. Be sure
not to damage the oil seal by the spline of the shaft.
Torque: 74Nꞏm (7.5kgꞏm/54 lb ft)
3. Install brake pipe.
4. Connect antilock brake system (ABS) speed sensor
and harness (if so equipped), refer to Anti–Lock
Brake System in Brake section.
5. Install brake disc.
6. Install brake caliper. Refer to Disk Brakes in Brake
section.
7. Install axle housing assembly.
8. Install coil spring and insulator.
9. Install the trailing link fixing bolt and nut to the axle
housing. For the procedures in items 9–13, refer to
Suspension section.
10. Install the center link bolt and nut to the axle housing.

4A2B–10DIFFERENTIAL (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: 74Nꞏm (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–13
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)

DIFFERENTIAL (REAR 244mm)
4A2B–17
Reassembly
1. Install outer bearing outer race by using installer
5–8840–2689–0 and grip 5–8840–0007–0.
425RY00014
2. Install inner bearing outer race by using installer
5–8840–2690–0 and grip 5–8840–0007–0.
425RY00013
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 5–8840–2678–0 (3), inner pilot
5–8840–2680–0 (2) ,bolt and nut 5–8840–0127–0
(4) and outer pilot 5–8840–2681–0 (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: 5–8840–2678–0
(3) Disc (2 pcs.): 5–8840–2679–0
(4) Arbor: 5–8840–0128–0

4A2B–20DIFFERENTIAL (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

DIFFERENTIAL (REAR 244mm)
4A2B–23
16. Tighten the bolt to the specified torque.
Torque:108Nꞏm (11.0kgꞏm/80 lb ft)
425RS036
Gear Tooth Contact Pattern Check and Adjustment
1. Apply a thin coat of Prussian blue or equivalent to the
faces of the 7–8 teeth of the ring gear. Check the
impression of contact on the ring gear teeth and make
necessary adjustment as described in illustration if
the contact is abnormal.
425RS038
Legend
(1) Heel
(2) Toe
(3) Concave Side(Coast)
(4) Convex Side(Drive)
425RS039

DIFFERENTIAL (REAR 244mm)
4A2B–25
Disassembly
1. Remove bolt.
2. Remove ring gear.
3. Remove lock pin using a small drift.
425RY00002
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:
Ring gear, pinion gear
Bearing
Side gear, pinion mate gear, differential shaft
Differential cage, carrier
Thrust washer
Oil seal
Ring gear replacement:
1. The ring gear should always be replaced with the
drive pinion as a set.
2. Clean the ring gear threaded holes to remove the
locking argent.
3. Discard used bolts and install new ones.
4. When installing the ring gear, apply LOCTITE 271 or
equivalent to all the threaded area and ha of the
unthreaded area of the bolt.
Torque: 127Nꞏm (13.0kgꞏm/94 lb ft)
425RW033Clearance between the differential pinion and the
pinion shaft measurement.
Standard: 0.07 – 0.13 mm (0.003 – 0.005 in)
Limit: 0.2 mm (0.008 in)
425RY00007

DIFFERENTIAL (REAR 244mm)
4A2B–27
2. Adjust the backlash between the side gear and
the pinion gear.
Backlash: 0.15 – 0.20 mm (0.006 – 0.008 in)
Thickness of thrust washers available
mm
0.800.901.001.101.201.30
in0.0310.0350.0390.0430.0470.051
425RY00008
4. Install lock pin.
Install the lock pin using small drift.
425RY00009
5. Install exciter ring (If equipped with rear wheel
antilock).
Press the exciter ring on the differential cage using
the ring gear as a pilot.
NOTE: Discard used exciter ring and install new one.
425RS052
6. Tighten the bolts in diagonal sequence as illustrated.
Torque: 127Nꞏm (13.0kgꞏm/94 lb ft)
NOTE: Discard used bolts and install new ones.
425RW033

4A2B–34DIFFERENTIAL (REAR 244mm)
28. Check the operation.
Measure the starting torque using the side gear
holder.
Starting torque:
29–45Nꞏm(3.0–4.6kgꞏm/22–33Ibft)
425RW065
Legend
(1) Side Gear Holder : 5–8840–2381–0

4A2B–36DIFFERENTIAL (REAR 244mm)
Torque Specifications
420RY00002