76 dart flywheel/flexplate?

Hey everyone, I just bought a 76 dart custom and the what I thought was flywheel is I think cracked, its rattling pretty badly. I called to check prices and the parts guy told me that an automatic does not have a flywheel and just has a flexplate. I know this is kindof a dumb question but can I get some advice? Does it have a flywheel??? THANKS!!!
Author: Taddeo