how many are different sizes? i know the two that go between the headlights and the grille are a little different because they dont actually screw into anything, if you lost the tabs from behind them (small metal squares with a square hole in them) you will need to make some new ones, i used a coke bottle lid cut into the right size to fit between the tabs back there (youll see or feel them) then screwed through that and they have been holdin up well like that for about 5000 miles