removing propshaft from MT75

[voucht]

Hi,
I'm stripping off my donor. Brakes, drive shafts and diff are removed now.
On my donor, I have an MT75 gear box. But I will fit a T9 gearbox on my roadster (I have it already).

Question 1 : will the joint between the prop shaft and the MT75 fit the Type 9 gear box ?

Picture : joint on the MT75 of the car and Type 9 tail shaft.
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Question 2 : according to the RTA manual (French equivalent of your Haynes Manuals), the propshaft, when undone from the pig nose of the diff and the central bearing, is supposed to get out easily from the tail of the Type 9 gearbox, without undoing the joint. Is it the same with the MT75 gearbox? I can't find anything about how the joint is fitted to an MT75 gearbox in the manual.
The front part of the prop shaft doesn't seem to be willing going out easily. Do I just have to pull on it more, or is there something to do to set it free?
Actually, the prop shaft went out easily from its “front part” which is still on the car, attached to the gearbox (see picture bellow)
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Thank you for your advices and tips.