I am posting this for a friend who still does not believe the internet will catch on. He has a 68 cutlass convertible. It is in need of doors. He has found doors from a 69 convertible but the owner of them did not think they had vents. Are their differences in these two years, they a few hours away from myself and was just hoping for a little extra information before making the drive as I am going to look at them for him.