69 Dart rear window trim issue/question...

I bought a nice rear window trim, but the bottom doesn't fit the window!! I ASSumed that any 68 and up Dart (not incl the 73-up Sport) would be the same, but maybe not?

As can be seen in the pic, the countour isn't even close.

What say you, A-body brain trusts?? Do I need 68-69 trim specifically?

Discuss...