Hi all just need a bit of advice

I have a 2001 wrx with 2aa gearbox in which has lost first

Just bought a 5aa out of a 2002 wrx which was told are the same

Been reading about them and they say they need front male driveshaft

Is this true

Can any 1 help me on this

 

yes thats true different shafts,male instead of female,find a 2aa or a 1aa