Power transmission route in reverse gear
WARNING: This page is about a different car, the 2015 Ford Focus. However, it is still accessible from the selected car via links, so may be relevant.
The reverse gear idler is welded to the 1st gear. It is constantly engaged with the reverse gear wheel.
The reverse gear wheel is positively connected to the 5th/6th/reverse gear output shaft by the reverse gear synchronizer assembly.