Opel Frontera UBS. Manual - part 1940

DIFFERENTIAL (REAR 220mm) 4A2A–21

4. Adjust feeler gauge thickness from side to side

until ring gear backlash is in the specified range.

Backlash: 0.15–0.2 mm(0.006 –0.008 in)

425RS032

With zero end play and correct backlash estab-
lished, remove the feeler gauge packs, determine
the thickness of the shims required and add 0.05
mm (0.002 in) to each shim pack to provide side
bearing preload. Always use new shims.

5. Use bearing remover 5–8840–0013/0014–0 and

pilot 5–8840–2196–0 to remove side bearing.

415RW032

13. Install the side bearings together with the selected

shims.

425RS029

Legend

(1) Drive Handle: 5–8840–0007–0
(2) Installer: 5–8840–2162–0
(3) Pilot: 5–8840–2196–0

14. Install side bearing outer race.
15. Install differential cage assembly.
16. Install bearing cap then align the setting marks(1)

applied at disassembly.

425RS035

4A2A–22 DIFFERENTIAL (REAR 220mm)

17.  Tighten the cap  bolt to the specified torque.

Torque: 108 N·m (11.0kg·m/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)

DIFFERENTIAL (REAR 220mm) 4A2A–23

425RS039

4A2A–24 DIFFERENTIAL (REAR 220mm)

Differential Cage Assembly

Disassembled View

415RW034

Legend

(1) Pinion Gear
(2) Thrust Washer
(3) Side Gear
(4) Cross Pin

(5) Ring Gear
(6) Bolt
(7) Differential Cage
(8) Lock Pin

Disassembly

1. Remove bolt.
2. Remove ring gear.
3. Remove lock pin, break staking on the lock pin, using

a 5 mm (0.20 in) diameter drill.

425RS042