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Undo your front wheel nuts with the nuts loose you will be able to lift your wheels up and down, commodore rims from factory are centred on the spigot of the hub( hubcentric), (this is evident by the fact that if you don't lube the spigot the wheels eventually seize on to the hub)
If the wheels dont have locators (also called hub rings or hubcentric rings) to ensure they are tight on the hub they will be slightly off centre and cause the exact problems you described.
Read about it here .... How Hub Centric Rings Work - JustForWheels.com