Is a window regulator from a 2 door '81 Lincoln Mark VI will fit on my 4 door '83?

A window regulator from a 2-door 1981 Lincoln Mark VI is unlikely to fit a 4-door 1983 Lincoln Mark VI due to differences in body structure and door designs between the two models. While they may share some components, the specific regulator mechanisms can vary between 2-door and 4-door configurations. It's best to check compatibility through part numbers or consult a professional for confirmation.