X Body vs A Body seats

Can anyone tell me if seats from an A Body will swap into an X Body? I know the front bench seats will work in older models, just not sure about the later mid 70's cars. Same thing for the rear seats, which I assume are different. Anyone have measurements for Nova rears?

I know Novas dont fit have tried already from a 75

Thanks. How bad off were they? I'm assuming they were just too narrow, but maybe height was a problem?

The reason I ask is because someone wants to buy my blue/black seats from Browneye & I just wanted to double check before going through the trouble of removing them for nothing. Mainly don't want to rip the guy off by having him stuck with seats that he can't use.