Ok so here how the driveshafts came off:
I bought an air chisel hammer. But before I tried doing that I rocked the car back and fourth. I did this by turning on the car and putting the car in drive and driving slowly forward. Then I stop and put the car in reverse and drive slowly back. Sure enough, the axle finally came off the flex discs.

So I pulled the rear halfshaft off, no problem, pulled off the bearing and put the new bearing and carrier on.

As I'm placing the rear driveshaft back into the front, I notice that I cant place it, compress it and have room for the rear of the rear driveshaft to rest on the diff and flex disc.

so I would guess, I need need to take the transmission mount off the make room. How to I suspend the transmission? Or does it need to rest on the crossmember?

What are some tricks to fit the driveshaft back in?