Welcome to the ‘68 club. Even though many things look to be the same, between the brands and models of the same years you will be surprised at the uniqueness between them. A parts manual will go a long ways in what parts may fit other models. Body parts and moldings are pretty specific. Drive train and mechanical parts can cross models and years. But don’t always assume. Something as simple as a parking brake cable doesn’t interchange between ‘68 c- bodies.