They may not be a direct fit but building a hot rod they will be close enough. the EMS web site shows 37 to 40 as being the same.HRP
Thanks HRP,we're not putting the battery under the floor anyway,don't know what other differences there would be.
The 1935-36 has a humped up area right in front of the seat and the 1939-40 ford floor is flat in the area it should fit fine in a 35-36 Dennis Carpenter has the the floor pan and tunnel on sale for $375 later kb