If you are talking about the solid wood floorboards on the art deco early 47 trucks, you can probably get a cabinetmaker or woodworker to make some for you. At some point in time the floorboards became plywood and assembled before the body went on. If they are solid wood, use the old ones to use as patterns for holes and the contour of the sides. The problem will be the metal hold down strips. They can probably be custom made. I contacted a place once several years ago, that gave some ridiculous excuse as to why it was impossible, because there wasn't room in the shop to do strips that much longer. So my point is you will have to shop around a little. That is if you can't save your originals. The hardware kits are available also, but you may have to buy a couple more bolts because of the length. I haven't researched that at this point, nor have I decided that regular carriage bolts couldn't do the job too. I think I may have the dimensions of the boards somewhere and will check to see. You may find them with a search.
