Thanks Verde. I might buy one from a '37 for my '40 until I come across the right seat locally. As long as the dimensions are close.
The 40 is different from all the others. Pretty sure they will all bolt into the same holes on the floor though.
I think he is talking about the rear seat.. 38 deluxe and 39/40 all share the same body shell in the sedan.. The 37 rear seat may be a little different but probably will be close...
Oops, you are right, he does say REAR seat. Too bad I didn't see this thread last fall as I passed on a smokin deal for a 40 rear seat. I bought the front though. Again, I've never compared, but I would think the rear seats are totally interchangeable for the years/models like ScrapMetal48 said above.
New Seat springs are available from Macs. Very expensive though and some upholstery shops would rather build a seat from scratch.