First two pics show the depth of the FRONT bearing depth before the snout seal is put in.
The second two show the depth of the 3-pin PLATE face, not the end of the pins. These two bearings are push-me-pull-you. If you press one, it'll try to press out the other. If you don't understand what I'm explaining, ask me. When you press the top, you have to rest on the pin plate, not the bottom of the nosedrive.
You have to press all the bearings out of the nosedrive and off the shaft. I have too many instructions and pictures to even show you. In other words, you NEED someone that'* done similar work to help you figure that out.
Reassembly in BASIC terms is this:
In that order, then go back and compare to your original measurements shown in the first four pics I posted.
This is the technique for pressing at the final step in order to press the bearings TOWARDS each other: