1970 GMC Longbed driveshaft

[asesapie]

I can’t sort out how to take the front half of my driveshaft out. The front half of the drive shaft with the carrier bearing has no room to move essentially trapping the driveshaft in place. Anyone have any insight on how this thing can be removed? Carrier bearing is too larger to fit through the cross member. I didn’t build this part of my truck it came to me this way from PO.