Originally Posted by
Chris69
wots the official in gear figures for the ST170 box then? are 5th and 6th very short cus 1st, 2nd, 3rd and 4th don't sound like they are!
dont know if this helps because i am not intelligent enough to know what it means lol
Transmission- Transmission type: Getrag MT285 6-speed, close-ratio manual
- Clutch type: Hydraulically operated with dual-mass flywheel
- Clutch diameter: 228mm
- 6 speed transverse transaxle in 3 shaft architecture
- Installation length 332/322 mm with 106,2/98,25 mm bell housing depth
- Weight (without oil) � approx. 45.5 kg
- Oil fill � 1.7 liters
- All gears synchronized
- Reverse idler gear is speedgear 1st gear
- Two piece housing
- Cable shift system top mounted
Getrag MT285 General Features
The 6-speed manual transaxle is a three-shaft design with four fixed gear wheels on the input shaft and seven gear wheels on the two output shafts with a maximum input torque of 200 Nm.
In conventional transmissions/transaxles an input shaft transmits the torque to an output shaft on which the gear wheels are seated. The number of gears therefore determines the length of the transmission casing.
The 6-speed manual transaxle does not require an increase in the casing length to accommodate the six gears; this is achieved by using two output shafts. Using two output shafts allows the transaxle to be significantly shorter, enabling installation in a more confined space.
The gears are divided between the two output shafts as follows:

- Output shaft 1: first, second, fifth and sixth gear
- Output shaft 2: third, fourth and reverse gear All gears are synchronized, including the reverse gear.
The gear wheels on the input shaft are fixed to the shaft. The output shafts and the input shaft are supported by roller bearings (clutch housing), sealed ball bearings are used in the transaxle housing.
The center distance between the input shaft and the differential is 187.85 mm. The transaxle weight is approximately 46 kg and the overall length is 332 mm including the clutch housing.