He is right the 70's used a smaller bolt to the hood and I believe the later models even went to a geared lever action.

There is a guy (I think Resto Rick) who rebuilds them and can add much better details.

As for the hinges, they are the same as the steel hood hinges, it is the springs that are the difference. Along that same lines if your going for perfection the AAR springs were 1 or two coils different than the T/A springs. I am not sure which one is the style reproduced.