Are rear seats interchangable on all A-bodies?

Wizard said

So basically, any A body rear seat 2 door model will work/interchange and fit but tabs may be different due to years?

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I had to get a rear seat for a 71 Duster, Friend gave me a perfect back seat but it was out of I think? a 74 duster. It fit but the tabs were all wrong. I found a seat out of an old yard and I believe it was out of a 67 dart 2 door? Don't remember. I could have drilled out spot welds and redid it all IF I put them exactly where needed!!!!! I traded the boneyard in my good seat and was happy.