70-74 seat frame... difference?

[Hilljack68]

I have what I believe to be '72 Charger front bucket seats... and they need recovered. I'd like to go with new seat covers for a '70 Charger. So, my question:

Are the seat FRAMES the same between 1970 and 1974? I know the padding and designs are different, but are the frames the same?

Thanks boys!