stupid vh Question

[VH_Commodore_Wagon]

The tool can be brought at autobarn as ive been told but i brought mine from down south in melb.

does autobarn in mackay sell them ???

the reason why i want to change the door is because the top bar on the rear door window surround, has a small rust hole in the middle as big as half the thickness of a pen ......... why in the hell would it rust here ?