I’m looking for some rear door panels for my 68 Firebird 400, a while ago I blindly bought what I should need, 68 panels that wrap all the way up the around the top, like the fronts. Should’ve looked closer before I did that, seems my car was made with 67 style rear panels? (with metal at top) Why might this be and does it look like the 67 panel will fit? Thank you - LB