Opel Frontera UBS. Service manual — part 1941
DIFFERENTIAL (REAR 220mm) 4A2A–25
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 N·m (11.0kg·m/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–26 DIFFERENTIAL (REAR 220mm)
Clearance between the side gear and the
differential box:
Standard: 0.05–0.12 mm (0.002–0.005 in)
Limit: 0.15 mm(0.006 in)
425RS046
Legend
(1) Side Gear
(2) Differential Box
Play in splines between the side gear and
the axle shaft:
Standard: 0.07–0.38 mm(0.003 –0.014 in)
Limit:0.5m (0.02 in)
425RS047
Reassembly
1. Install thrust washer.
2. Install side gear.
3. Install the pinion gear by engaging it with the side
gears while turning both pinion gears simultaneously
in the same direction.
425RS048
4. Install cross pin.
1. Be sure to install the cross pin so that it is in
alignment with the lock pin hole in the differential
cage.
425RS049
2. Adjust the backlash between the side gear and
the pinion gear.
Backlash:0.13 – 0.18 mm (0.005– 0.007 in)
DIFFERENTIAL (REAR 220mm) 4A2A–27
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 N·m (11.0kg·m/80 lb ft)
NOTE: Discard used bolts and install new ones.
415RW036
4A2A–28 DIFFERENTIAL (REAR 220mm)
Limited Slip Differential
Disassembled View
425RY001
Legend
(1) Screw
(2) Differential cage A
(3) Thrust washer
(4) Spring disc
(5) Friction Plate
(6) Friction plate
(7) Friction Plate
(8) Friction disc
(9) Friction Plate
(10) Friction disc
(11) Friction Plate
(12) Pressure ring
(13) Side gear
(14) Pinion and Pinion shaft
(15) Side gear
(16) Pressure ring
(17) Friction Plate
(18) Friction disc
(19) Friction Plate
(20) Friction disc
(21) Friction Plate
(22) Friction Plate
(23) Friction Plate
(24) Spring disc
(25) Thrust washer
(26) Differential cage B
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