I looked at the AMD reinforcement plates, they are close to what i made but look different from the pic of originals. If they varied year to year I am not going to be too picky, probably just use what i have.
I am repairing the floor pan on my 1970 340 Dart Swinger. I bought it a long time ago and the previous owner had installed factory buckets but didnt add the reinforcement plates. I found a pic of an A body pan with the plates and made my own but would like to weld in some that look more original.