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Astra F (1991-1998, petrol) Astra G (1998-2004, petrol) Astra G (1998-2004) Astra H (2004-2009) Astra J (2009-2015, petrol)
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  • Gearbox seals — replacement

Gearbox seals — replacement (Opel Astra G)

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Contents: Axle shaft seal ⬇ Primary shaft seal ⬇ Gear selector shaft seal ⬇

Axle shaft seal



1. Raise the rear of the vehicle and support it on stands.

2. Drain the oil from the gearbox (see above).

3. Remove the axle shaft (Chapter 8).

4. Carefully remove the seal by prying it with a screwdriver (see photo).

4. Carefully remove the seal by prying it with a screwdriver (see photo).


5. Wipe the surface and use a mandrel to press in the new seal so that the seal surface is flush with the seal housing (see photo).

5. Wipe the surface and use a mandrel to press in the new seal so that the seal surface is flush…


6. Install the axle shaft, fill the gearbox with oil.

Primary shaft seal



7. The primary shaft seal is made integral with the clutch slave cylinder, which is a non-separable structure. In case of leakage from under the seal, the clutch slave cylinder should be replaced.



Gear selector shaft seal



8. The gear selector shaft seal is changed at a car service center, since partial disassembly of the gearbox is required.


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Opel Astra G: Mechanical gearbox
Next articles

Gear Shift Mechanism — Removal and Installation
Gear shift mechanism — adjustment
Gearbox oil change
General information
Technical data
Reverse signal switch — checking, removing and installing
Gearbox — removal and installation
Gearbox disassembly — general information
Gearbox — Checking the oil level


See similar ones from other Opel car manuals:
▶ Replacing crankshaft seals Opel Corsa B (1993-2000)
▶ Replacing transmission oil in a manual gearbox M32-6 Opel Insignia A (2008-2017)
▶ Replacing the front camshaft seals of a 16-valve engine Opel Kadett E (1984-1995)
▶ Manual gearbox — removal and installation Opel Omega A (1986-1993)
▶ Differential Bearing Seals — Removal and Installation Opel Vectra A (1988-1995, petrol)
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Astra J (2009-2015, petrol) 
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