what do you need to mate 9" ford with driveshaft

do you need anything to mate the 9" ford(lincoln versailles) rear to the driver shaft of a 71' demon?

i'm assuming the versailles rear will match up to the a-body ok, right?

also, how would i go about changing the bolt pattern on the versailles rear?it's disc brakes, and i need to turn it into the small bolt pattern....any price estimate???

all help is greatly appreciated