[DroidPie]

Hi fellow i30ians,
Can someone please advise if it's just the ball joint or the whole control arm to be replaced ? And where to purchase the part or part number as well? It gave up on both the left and right sides(front lower).
It's a 2015 i30 ActiveX 5DR Hatch Petrol 107kW, I live in Melbourne, Austrlia BTW.
Appreciate your help!!