Vinyl top Dart 1968 GTS 38"or 43" ???

yes they are exactly the same grain and color.....the seam width in the center could be 38" or 43" from seam to seam.....My 72 dart has original vinyl roof and measures 38" seam to seam....not sure what a 68 GTS is though
Thank you for the information, but I need the measure of 68.