You will need to crack the box open. That is transfer off, bellhousing off and the two halves seperated. The input shaft shroud can come off from inside the bellhousing to expose the front seal but the bearing has a retaining clip that locates the bearing in a groove in the top and bottom half of the case. Once the case is open the input shaft will lift out and you can pull the bearings off it.
You can see the two bearings at the top of the photo with the retaining clip.
