I'm needing a trunk pan for my 42 buick sedanette series 70. Will a gm trunk pan for the sedanette models fit? Please see the link below thanks http://emsautomotive.com/index.php?route=product/product&path=20_61&product_id=268
My recommendation is to contact EMS, ask them. If the trunk pan they produce would be anywhere near fitting it would benefit them to know.
There were 3 x GM body series, smallest was 'A', intermediate was 'B' and largest was 'C'. All series had different wheelbases, I gather that not too many body (Series) parts are interchangeable if any at all.
I am fairly certain that the 70 series pan is slightly larger. I would call EMS and get them to give you the dimensions. They are nice folks with quality stuff and will be happy to help. If close you can add to it to fit.
Should be very close for a 40 or 50 series. I would still see if EMS will give you the actual dimensions. They make good stuff.