Welcome to the world of restoration parts that don't fit. I did door glass on a 67 Camaro at work. The curvature of the glass on both doors didn't match the quarter glasses and therefore didn't seal against the moulding/seal combo on the from edge of the quarter glass yielding leaks. On a 65 Chevy wagon, the rr quarter glass was off almost 2" in its curvature. They ended up getting one from DVAP out of another car. Fit perfect.