just have to change hubs, caliper carriers and disks iirc
4-5 stud bearing calipers have the ball joint fixing further forward/back, wheel end up non-central in the arch if you missmatch wishbone/bearing carrier. so wishbones may need to be fitted, possiby a different anti-roll bar depending on which bones are fitted, outer c/vs at least or shafts & track rods if track is changed etc.