Front Planetary Carrier Hub (Output Hub): Notes
WARNING: This page is about a different car, the 2011 Mercury Milan and 2011 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
The front planetary carrier hub/park gear is splined to the front planetary carrier and the drive chain drive sprocket. This allows torque to be transferred from the planetary gearset to the final drive gearset.