Duster Seat Covers

[Duster7286]

Hope someone can help me out here. I have a 72 duster, it has a front split bench w/arm rest. It came in green with the metal medallions.

I saw a set in legendary for a 71 duster. they are black with grey inserts.

Can i switch to these covers or would the foam need to be replaced?

thanks for ANY help.