Chris,

The picture at the top of my thread showing the long 8-18 sheet metal screws is from an unrestored/survivor 6100 mi 70 Hemi Cuda, Hamtramck build. There was also a 4700 mi unrestored/survivor AAR at the same show that also had the exact same hardware on the lower part of the valence.

I also always thought the longer screws were incorrect, but then I saw these 2 cars with early and mid-year build dates with the screws. Now I believe some were equipped with these from Hamtramck.