location of bucket seat reinforcements

I'm working on a 1970 Dart GT. It has factory bucket seats. It has no reinforcements for the inside bolts for the seats. That seemed odd and they seem like a good idea so I bought the pieces pre-cut. It seems logical that the plates go under the floor (so the bolt doesn't pull through in a wreck) and the location is obvious, but I have seen threads here that seem to say that people are installing them inside the car. Just checking to make sure what is correct.
Author: admin