1998 OPEL FRONTERA torque

DIFFERENTIAL (REAR 220mm)
4A2A–19
17. Tighten the cap bolt to the specified torque.
Torque: 108 Nꞏm (11.0kgꞏm/80 lb ft)
425RS036
1. Measure the amount of run–out of the ring gear at
its rear face.
Standard: 0.02 mm ( 0.001 in)
Limit: 0.05 mm ( 0.002 in)
425RS037
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)

4A2A–22
DIFFERENTIAL (REAR 220mm)
4. Remove the cross pin, using a soft metal rod and a
hammer.
425RS043
5. Remove pinion gear.
6. Remove side gear.
7. Remove 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:
1. Ring gear, pinion gear
2. Bearing
3. Side gear, pinion gear, cross pin
4. Differential cage, carrier
5. Thrust washer
6. 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 agent.
3. When installing the ring gear, apply LOCTITE 271 or
equivalent to all the threaded area and half of the
unthreaded area of the bolt.
4. Discard used bolts and install new ones.
Torque: 108 Nꞏm (11.0kgꞏm/80 lb ft)5. Tighten the fixing bolts in a diagonal sequence as
illustrated.
415RW036
Clearance between the differential pinion
and the cross pin measurement:
Standard: 0.06 – 0.12 mm (0.002–0.005 in)
Limit: 0.2 mm (0.008 in)
425RS045

4A2A–24
DIFFERENTIAL (REAR 220mm)
Thickness of thrust washers available:
0.80 mm, 0.90 mm, 1.00 mm 1.10 mm, 1.20 mm,
1.30 mm (0.031 in, 0.035 in, 0.039 in,0.043 in,
0.047 in, 0.051 in)
425RS050
5. Install lock pin. After lock pin installation, stake the
cage to secure the lock pin.
425RS051
Legend
(1) Staked Portion
(2) Lock Pin
6. Clean the ring gear threaded holes to remove the
locking agent. When installing the ring gear, apply
LOCTITE 271 or equivalent to all the threaded area
and half of the unthreaded area of the bolt.7. Tighten the bolts in diagonal sequence as illustrated.
Torque: 108 Nꞏm (11.0kgꞏm/80 lb ft)
NOTE: Discard used bolts and install new ones.
415RW036

DIFFERENTIAL (REAR 220mm)
4A2A–31
23. Check the operation.
Measure the starting torque using the side gear
holder.
Starting torque:
64–98Nꞏm(6.5–7.3kgꞏm/47–72Ibft)
425RW065
Legend
(1) Side Gear Holder : 5–8840–2381–0

DIFFERENTIAL (REAR 220mm)
4A2A–33
Torque Specifications
E04RW016

DIFFERENTIAL (REAR 244mm)
4A2B–1
DRIVELINE/AXLE
DIFFERENTIAL (REAR 244mm)
CONTENTS
Service Precaution 4A2B–1. . . . . . . . . . . . . . . . . . . . . .
General Description 4A2B–2. . . . . . . . . . . . . . . . . . . . .
Diagnosis 4A2B–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle Housing 4A2B–4. . . . . . . . . . . . . . . . . . . . . . . . . . .
Axle Housing and Associated Parts 4A2B–4. . . . . .
Removal 4A2B–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Oil Seal Replacement 4A2B–5. . . . . . . . . . . . . . . . . .
Installation 4A2B–5. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pinion Oil Seal 4A2B–6. . . . . . . . . . . . . . . . . . . . . . . . . .
Pinion Oil Seal and Associated Parts 4A2B–6. . . . .
Removal 4A2B–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A2B–7. . . . . . . . . . . . . . . . . .
Installation 4A2B–7. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Assembly 4A2B–8. . . . . . . . . . . . . . . . . . . .
Differential Assembly and Associated Parts 4A2B–8
Removal 4A2B–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation 4A2B–9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembled View 4A2B–10. . . . . . . . . . . . . . . . . . . .
Disassembly 4A2B–11. . . . . . . . . . . . . . . . . . . . . . . . . .
Reassembly 4A2B–13. . . . . . . . . . . . . . . . . . . . . . . . . .
Differential Cage Assembly 4A2B–20. . . . . . . . . . . . . . .
Disassembled View 4A2B–20. . . . . . . . . . . . . . . . . . . .
Disassembly 4A2B–21. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A2B–21. . . . . . . . . . . . . . . . . .
Reassembly 4A2B–21. . . . . . . . . . . . . . . . . . . . . . . . . .
Locking Differential Assembly 4A2B–23. . . . . . . . . . . . .
Disassembled View 4A2B–23. . . . . . . . . . . . . . . . . . . .
Disassembly 4A2B–23. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and Repair 4A2B–25. . . . . . . . . . . . . . . . . .
Reassembly 4A2B–25. . . . . . . . . . . . . . . . . . . . . . . . . .
Main Data and Specifications 4A2B–27. . . . . . . . . . . . .
Special Tools 4A2B–29. . . . . . . . . . . . . . . . . . . . . . . . . . .
Service Precaution
WARNING: IF SO EQUIPPED WITH A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS),
REFER TO THE SRS COMPONENT AND WIRING
LOCATION VIEW IN ORDER TO DETERMINE
WHETHER YOU ARE PERFORMING SERVICE ON OR
NEAR THE SRS COMPONENTS OR THE SRS
WIRING. WHEN YOU ARE REFORMING SERVICE ON
OR NEAR THE SRS COMPONENTS OR THE SRS
WIRING, REFER TO THE SRS SERVICE
INFORMATION. FAILURE TO FOLLOW WARNINGS
COULD RESULT IN POSSIBLE AIR BAG
DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNEEDED SRS SYSTEM REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU will call out those fasteners that require a
replacement after removal. ISUZU will also call out
the fasteners that require thread lockers or thread
sealant. UNLESS OTHERWISE SPECIFIED , do not
use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or
fastener joint interfaces. Generally,such coatings
adversely affect the fastener torque and the joint
c l a m p i n g f o r c e , a n d m a y d a m a g e t h e f a s t e n e r. W h e n
you install fasteners, use the correct tightening
sequence and specification. Following these
instructions can help you avoid damage to parts and
systems.

DIFFERENTIAL (REAR 244mm)
4A2B–5
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.

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)