Fitmant Issue: Not sure if this is a glass problem or roof problem? Back glass and roof are square. Front roof has 1 inch gap in the middle at the top when the rest of the glass is even on the other three sides. Even if we raise the glass all the way to the top as far as it will go in the corners, the top middle of the glass only overlays the roof by 1/8 inch. Has anybody seen this problem before? Glass and roof are both brand new. I took the glass to NPD in Florida and put it next to there glass for a 68 and it was identical. The roof was bought from classic industries. Are the glass and roof the same for all 67/68 firebirds and Camaros? Any recommendations would be appreciated.