Opel Frontera UBS. Service manual — part 1004

4A2B–32

DIFFERENTIAL (REAR 244mm)

2. Measuring the overall length of the pressurering,

friction disc and friction plate.

D

Mount the pinion shaft in the pressurering and then
install the friction disc & plate.

D

Measure the length between the plates over the
V–groove. (D)

425RS065

3. After measuring dimensions A,B,C and D, make

adjustment in the following manner:

D

Measure the thickness (E) of the spring disc.
1.75mm (0.069in)

×

2 discs

4. Select the friction disc & plate so as to satisfy the

following equation:
{(A-B)+C}-(D+E)=0.06-0.20mm (0.002-0.008in)
Also, the total size difference of the friction disc &
plate and spring disc should be 0.05mm (0.02in) or
less.

Thickness
:1.65–1.75–1.85mm(0.065–0.069–0.073 in)

Backlash adjustment of the side gear in
the direction of the shaft

1. Measuring the depth of the differential cage.

(F–B): 95.63 mm (3.76 in)

(G): 15.63 mm (0.62 in)

425RS066

2. Measuring the dimension between the thrust washers

at both ends.

D

Assemble the side gear, pinion, pinion shaft,
pressure ring and thrust washer, and pressing the
pressure ring to–the pinion shaft in the direction of
the shaft to make the clearance 0.

D

Have the side gear contact to the pinion to make the
backlash 0.

D

Measure the dimension (H) between thrust
washers at both ends.

425RS067

DIFFERENTIAL (REAR 244mm) 4A2B–33

3. After measuring dimensions of each of the above

sections, proceed with the adjustment in the following
manner:
Adjust the clearance to satisfy the equation below.
{(F – B) + G – H}=0.05 – 0.20 mm
Also, select the thrust washers so that the
dimensional difference between the back surfaces of
the left and right pressure rings to the thrust washers
is 0.05mm or less.

Thickness :

1.5mm (0.059 in)

1.6 mm(0.063 in)

1.7 mm(0.067 in)

NOTE: When assembling the parts, apply recommended
gear oil sufficiently to each of the parts, especially, to the
contact surfaces and sliding surfaces.

1. Install Differential cage B.
2. Install Thrust washer.
3. Install Spring disc.

D

When assembling the spring disc, make sure the
mounting direction is correct as shown in figure.

425RY004

Legend

(1) Friction Plate
(2) Spring Disc
(3) Friction Disc

4. Install Friction disc.
5. Install Friction plate.

6. Install Friction plate.
7. Install Friction disc.
8. Install Friction plate.
9. Install Friction disc.

10. Install Friction plate.

11. Install Pressure ring.

12. Install Side gear.
13. Install Pinion and pinion shaft.
14. Install Side gear.
15. Install Pressure ring.
16. Install Friction plate.
17. Install Friction disc.
18. Install Friction plate.
19. Install Friction disc.
20. Install Friction plate.
21. Install Friction plate.
22. Install Friction plate.
23. Install Spring disc.

D

When assembling the spring disc, make sure the
mounting direction is correct.

24. Install Spring disc.
25. Install Thrust washer.
26. Install Differential cage A.
27. Install Screw.

D

Matching the guide marks of the differential cages A
and B, tighten the screws evenly in the diagonal
order.

425RS055

4A2B–34

DIFFERENTIAL (REAR 244mm)

28. Check the operation.

D

Measure the starting torque using the side gear
holder.

Starting torque:

29 – 45 N·m (3.0 – 4.6 kg·m/ 22 – 33Ib ft)

425RW065

Legend

(1) Side Gear Holder : 5–8840–2381–0

DIFFERENTIAL (REAR 244mm) 4A2B–35

Main Data and Specifications

General Specifications

Rear axle

Type

Banjo, Semi–floating

Rear axle Size

244 mm (9.61 in)

Gear type

Hypoid

Gear ratio (to 1)

4.100(6VE1 with A/T)

4.300(6VE1 with M/T,4JX1)

Differential type

Pinion (STD), Four pinion (LSD)

Lubricant Grade

GL–5: (Standard differential)

GL–5, LSD: (Limited slip differential)

Locking Differential Lubricant

80W90 GL–5 Limited Slip Differential Gear Lubricant
together with Limited Slip Differential Lubricant Additive
(Part No. 8–01052–358–0) or equivalent.

Capacity

3.0 liter (2.6 Imp qt/3.2 US qt)