The F40 6-speed manual transmission has been produced at General Motors plants since 2003 and is used in models from brands such as Alfa Romeo, Lancia, Fiat, Opel, and Saab. This transmission is designed for particularly powerful turbocharged engines and diesel engines with 400 Nm of torque.
Specifications
| Type | manual transmission |
| Number of gears | 6 |
| Type of drive | front / all wheel |
| Engine volume, l | up to 3.2 |
| Torque output, Nm | up to 400 |
| Recommended oil | API GL-4, SAE 75W-85 |
| Oil capacity, liter | 3.2 |
| Replacing the oil | every 50 000 km |
| Replacing the filter | every 50 000 km |
| Gearbox lifespan, km | ~300 000 km |
| Weight, kg | 53.5 |
Gear ratios Opel F40
Using the example of a 2014 Opel Antara with a 2.2 CDTi diesel engine:
| Main | 3.895 |
| 1st | 4.167 |
| 2nd | 2.130 |
| 3rd | 1.321 |
| 4th | 0.954 |
| 5th | 0.755 |
| 6th | 0.623 |
| Reverse | 3.917 |
Using
The transmission was installed on:
- Alfa Romeo 156 (Type 932) in 2004 – 2007;
- Alfa Romeo 159 (Type 939) in 2005 – 2011;
- Alfa Romeo 166 (Type 936) in 2005 – 2007;
- Alfa Romeo Brera I (Type 939) in 2005 – 2010;
- Alfa Romeo Spider III (Type 939) in 2006 – 2010;
- Buick Regal 5 (GMX350) in 2010 – 2013;
- Buick Verano 1 (D1SB) in 2013 – 2015;
- Chevrolet Captiva 1 (C140) in 2011 – 2018;
- Chevrolet Cruze 1 (J300) in 2011 – 2014;
- Chevrolet Malibu 8 (V300) in 2011 – 2015;
- Chevrolet Orlando 1 (J309) in 2011 – 2014;
- Fiat Bravo II (198) in 2007 – 2014;
- Fiat Croma II (194) in 2005 – 2010;
- Lancia Delta III (844) in 2008 – 2014;
- Lancia Thesis I (841) in 2006 – 2009;
- Opel Astra H (A04) in 2004 – 2010;
- Opel Astra J (P10) in 2009 – 2015;
- Opel Antara A (L07) in 2010 – 2015;
- Opel Cascada A (W13) in 2013 – 2018;
- Opel Insignia A (G09) in 2008 – 2017;
- Opel Insignia B (Z18) in 2017 – …;
- Opel Signum A (Z03) in 2003 – 2008;
- Opel Vectra C (Z02) in 2003 – 2008;
- Opel Zafira B (A05) in 2005 – 2010;
- Opel Zafira C (P12) in 2011 – 2019;
- Pontiac G6 1 (GMX381) in 2005 – 2008;
- Saab 9-3 II (YS3F) in 2005 – 2011;
- Saab 9-5 I (YS3E) in 2005 – 2010.
Disadvantages of the Opel F40 gearbox
- This is a very reliable manual transmission and, in most cases, it doesn’t cause any problems;
- The main thing is to change the oil frequently and monitor its level, as leaks do occur;
- When the oil level drops, the synchronizers begin to wear out very quickly;
- There have been cases of gears shearing during abrupt shifting at high speed;
- At high mileage, the transmission may hum due to wear of the input shaft bearing.
