'70 dart swinger vs duster back seat?

I Have a 71 duster that needs a back seat, I have a perfect original back seat from what I think is a 70-71. The hooks to attach it with are wrong forth duster. My friend at the ld car yard tells me yep, was different hooks.
This is a driver not a show resto. I really do not want to cut and weld the hooks on the duster to fit the dart seat. Don't know why, just me I guess. Can I full the covers off the dart seat and they attach perfectly to a duster core??????
I would sell the dart seats, but too big to ship and not enough mopar guys here to buy.

i dont know if it helps, but i have 72 rear demon seat covers on a 72 dart rear seat. seems to work fine.

rear seats are not the same between the two body styles. 4 dr is also different.

Fgill said:

rear seats are not the same between the two body styles. 4 dr is also different.

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I realize 4 door rear seats are different shape at the corners. I was hoping to change covers, but the man I am getting parts from has a huge old boneyard, I will take my seat and hopefully get a little trade in value. I have kept the seat for last couple years thinking I might pick up a good dart or swinger and need it, but.....!! I have seen a few but wife wonder why I need more than 5 old Mopars!!??? lol