Is it true that a non-convertible or wagon frame from a 67 Cutlass fits all A bodied coupes and sedans, (GTO, Chevelle, Skylark,etc)? Thanks

 

No, I don't think they will. The 1967 Olds 2 door and 4 door will interchange with each other. The wagon has a different shape between the rear end and rear bumper. In addition Oldsmobile went to the side tank radiators before other GM models. I know there's a good thread that discusses this but I'm not finding it at the moment. Here is one that talks about the heavy duty frame used in 1967.

https://classicoldsmobile.com/forums...atibility.html