Opinions welcome

[BTY]

Bought a new drive for my older model outback. Now I've been told all I need to do is remove the alignment pin and it will fit rite in. Now it seems to me the shape is different as u can see from the pic. Not sure what to do?

[OEX Sunset Beach]

It should fit no problemo, does it not?

[BTY]

Doesn't seem like it will. The mold in the boat seems more squared where as the drive is more triangular not sure honestly the pic shows where it touches. I can even put the drive I to where the guides are holding it up from seating in place.