I just had a new top installed on my 68 and noticed that the top frame when it goes down in beside the upper seat back wants to hit the top of the cover panel. I remember it having this problem years ago. When you put the top down as the hinge gets close to the rear seat you would have to turn around and push the top frame toward the passenger side so it would miss. It pushes over with very little resistance. The top clears fine when coming up but then when putting back down same problem. Anyone else have a similar problem?