The F28 6-speed manual transmission was produced at the German Getrag plant from 1992 to 1996 and was installed exclusively in all-wheel drive Opel Calibra and Vectra models with the 2.0-liter C20LET turbo engine. This manual transmission is widely used for swaps on other models.
Specifications
| Type | manual transmission |
| Number of gears | 6 |
| Type of drive | all wheel |
| Engine volume, l | up to 2.0 |
| Torque output, Nm | up to 280 |
| Recommended oil | API GL-4, SAE 75W-85 |
| Oil capacity, liter | 2.0 |
| Replacing the oil | every 50 000 km |
| Replacing the filter | every 50 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 55 |
Gear ratios Opel F28
Using the example of a 1995 Opel Calibra with a 2.0 turbo engine:
| Main | 3.72/3.70 |
| 1st | 3.57 |
| 2nd | 2.16 |
| 3rd | 1.45 |
| 4th | 1.10 |
| 5th | 0.89 |
| 6th | 0.74 |
| Reverse | 3.32 |
Using
The transmission was installed on:
- Opel Calibra A (C89) in 1992 – 1996
- Opel Vectra A (J89) in 1992 – 1994
Disadvantages of the Opel F28 gearbox
- This is a very reliable manual transmission, but its service life is highly dependent on operating conditions;
- A weak point of this manual transmission is leaks through the gearshift lever shaft seal;
- The lever also sticks due to critical wear of the plastic sleeve and the gearshift sleeve;
- Forums also complain about the gear selector mechanism quickly becoming loose;
- At high mileage, bearings may begin to hum, most often on the transmission input shaft.
Frequently asked questions about the Opel F28
What type of transmission is the Opel F28?
The Opel F28 is a 6-speed manual transmission for all-wheel drive cars.
How much torque can the Opel F28 handle?
The Opel F28 is designed for torque up to 280 Nm and engines up to 2.0 liters.
How much oil does the Opel F28 take and which one?
The Opel F28 takes 2.0 liters of oil. Recommended oil: API GL-4, SAE 75W-85.
How often should the Opel F28 be serviced?
Oil change: every 50 000 km. Filter replacement: every 50 000 km.
How long does the Opel F28 last?
With proper maintenance, the Opel F28 typically lasts about 300 000 km.
How much does the Opel F28 weigh?
The Opel F28 weighs about 55 kg.
What are the gear ratios of the Opel F28?
Using the example of a 1995 Opel Calibra with a 2.0 turbo engine: final drive 3.72/3.70, 1st 3.57, 2nd 2.16, 3rd 1.45, 4th 1.10, 5th 0.89, 6th 0.74, reverse 3.32.
What cars was the Opel F28 installed on?
Opel Calibra A (C89) in 1992 - 1996; Opel Vectra A (J89) in 1992 - 1994.
What are the common problems of the Opel F28?
This is a very reliable manual transmission, but its service life is highly dependent on operating conditions. A weak point of this manual transmission is leaks through the gearshift lever shaft seal. All known problems.
