I have been dismantling my donor WRX. Looking at videos of the 818, I notice that the front stub axles (outer part of front driveshafts) don't appear to be mounted in the front hubs. If these shafts are not installed in the front hubs (splined shafts inside the hub bearings secured with slaked axle nuts) What is holding the front hub together and securing the front hubs to the wheels?