1972 Duster With 1973 Duster Split Bench Seat Questions

Hi All,

I have a '72 Duster with what I believe is a '73 Duster split bench seat (no armrest) in it. I believe the seat is a '73 because of the hinge covers, the soft back (the seat vinyl covers the entire back) and the fact that they fold completely forward.

My questions are:

I need a new bright blue seat cover, and they don't make them for a '73. So will a '72 cover work? Will it cover the entire back of the seat?

Thanks for the help!