46Canopy - The dashes are welded in on the AD trucks. The shape of the dash at the windshield on the 54-55 has a different arch to it than on the 47-53. If you are a sheet metal fabricator you could probably customize it to fit. That sounds like a nice challenge that I would take on. It would really mess people up looking at it. I'm all for that. As to the $$ value of 5 window cab vs. 3 window cab - it all depends on who you talk to. Old Cars Price Guide does not specify a different value between the two cabs.-wbrowne