Check in ePER: on the bottom of the forum banner you'll find the link.
Search window is top left of the screen - enter the VIN of your car, click the search You'll get the basic information on the model and engine and a link to vehicle details.
If you follow the link you'll get to all the categories. But above, on the blue ribbon there's the 'All' button. If you click it, you'll have all the options installed in the car. Including the gearbox. However I'm not 100% if it will display the exact model in your case. But might be worth trying.