Im just about to do an rs conversion on my connect and im considering swapping the hubs to 4 stud.

For the rear I currently have a standard drum rear beam on the connect, iv been told that if i want to convert to four stud discs i need to drill the beam to fit the stub axles. Is this correct?

If i started off with a 5 stud disc beam, Would the 4 stud stub axle swap straight over?
Or even would the 4 stud hubs fit onto the 5 stud stub axle?

Thanks in advance