Express Bed tailgate different than wide bed '31?

[Osage Orange]

I'd like to fabricate an express bed similar to an 89-A, since the originals are rare as hen's teeth and I am not restoring. What are the differences between an express bed tailgate and one for a 1931 A pickup? They look similar, but I'm guessing the dimensions are different, width and height. Still, I'd like to get as close to original as possible.

 

[lookin-backtexas]

This should answer all of your questions about the Express tailgate:

http://aafords.com/open-bodies/express-bodies/89-a-express/89-express-details/

 

[Osage Orange]

Thank you so much! I've bookmarked portions of this information, but never had it all there in one link. With my limited skills, I may only approximate a true express bed, but I want my AA to be a functioning truck. This information helps get me there, and keeps true express beds with those who can stay totally original.