Look closely just below that journal and you will notice a wire retainer ring. That has to come out first.

Then press the input shaft out - “up” as shown in your images.

Support the rear clutch piston support in your press as close to the diameter of the input shaft as possible, like where the thrust washer seats.
I have seen guys crack the support when not doing so.

Last edited by Transman; 07/10/20 08:16 PM.