I am trying to figure out what are the part numbers for Quick and Slow ratio gearbox and torque sensor. I have a MY 07 Berlina that drives like crap. I've tried to replace the torque sensor with a used part and did not see any improvement, so I'm starting to question the gearbox, as well.

If anyone can provide part numbers for the quick and slow ratio gearbox, or where I can find it, I would be most appreciative.

 

The quick ratio PS system is, I believe, in the '00-'03 MY AP1 and the CR. The '00-'03 MY is interchangeable with the '04-'05 MY AP2 but not the '06-'09 MY AP2. The CR is interchangeable with the '06-'09 MY but not with the '00-'05 MY. Please double check this but I do think that it is the situation.