What Year Tail Light Lenses Fit 64 Valiant?

The Mexican repro lenses are a mixed bag. The '64 and '65 taillight lenses are pretty good. The '71-'73 Dart ones are junk to the point of being unsafe.

ok without a long lecture and 12 links to other threads, what makes you say that the 71-71 dart lens is borderline unsafe? is the lens not clear enough for the bulb to light or something?