I know this is for a standard vectra c sri but it might appy to other vectra c's. I've got 58reg vectra c sri, car is in standard form and i've got uneven tyre wear on both rear tyres wearing on outside edge anyone come across this and possible cause and how to rectify problem. Rear tyres are 225/45/17 and rear banana arms have been changed, local techy at garage alignment center has tried to adjust bottom arms out to there limit but still got positive camber on rear wheels. So come you tech guys get your thinking caps on.