[bradford]

Looks stock to me. Mine was originally a 20" that someone glassed in some wood on the top, just didn't do much else as far as reinforcing. Surprised it lasted as long as it did. I would leave yours as is, provided your splash well doesn't have some kind of hatch cover or pie plate access in it that could sink you. If I were to try to fill it I would have a shop bend me an aluminum plate that fit over the entire transom cap into and outside of the splashwell and through bolt it like a lot of those who need a new transom will do sometimes to get a few more years out of them. Not the best, but a whole lot easier than replacing and raising an already perfectly fine transom. Someone with better glass experience might have a better option. Something to think about is removing the aluminum trim and glassing and painting/gelcoating the transom cap.