Part of the problem is that companies will reproduce parts that there is really no demand for, such as the new 73/74 grille shells. The urethane headlamp surrounds, yes, but grilles themselves are pretty common. Then the parts do not sell, the company sees a soft market for that model year, and more parts do not get reproduced.

I still can't understand why they haven't repopped the 71-74 roof skin. After that the biggest need would probably be full quarters. You have the Tabco skins now but they do not cover the reveal on the quarter window that is usually rotted. Trunk lids on these cars are always shot, too. At least the roof skins and trunk lids would cover a broader year range.