Does anyone know if a 67 chevelle rear seat will fit in my 69 442? It's 58inches which is what I need, are the frames the same? Ty

 

No, 64-67 is a totally different frame/spring design
68-69 buick skylark and olds cutlass will be the same.
68-69 chevelle and pontiac lemans/gto will fit into the car, but it is wider than the olds & buick back seat, so the olds/buick covers won't fit.

 

Thank you.