Rear drum brake hub?

[C.Tree]

If the donor was an Impreza NA, FWD only, manual trans I assume the rear bakes are drum? Can this rear hub be converted to disk brake AND accept the drive shafts? OR are the AWD hubs needed? Thanks

[PhyrraM]

AWD hubs and brakes are needed. However, I *believe* that the lower trailing and lateral links can be used.