This is what the passenger side axle looks like:
It is same thing as the driver side axle, except the part that goes into the differential is way longer, because it goes through the oil pan inside a tube then attaches to the differential gear.
You should not be taking apart the axle. The axle is held on to the differential gear by a springy c-clip, like any front CV axle I know of gets attached to the differential. You either but something in between inner black painted section of it and the oil pan pedestal that it goes into the oil pan, and then sharply try to pry it. Or put a punch or big flat screw driver or something like that at the end of the inner black painted section, in a direction that it will force it out. Tap on the other end of the puch/screw driver whatever you are using with a hammer. One or two at most three hits later it will free off the differential gear.
I am not following what exactly you did. Did you get the oil pan down with the front differential still bolted on to it and the passenger axle attached?
If you have the differential detached, there will be nothing left holding the passenger drive axle from being pulled out of the oil pan.