The dash in my 1958 cab has rust through on it. My 1955 cab has a great dash in it but the floorboards are beyond hope. So, as part of my project to merge the two cabs into one, I want to remove the transplant the dash into the 1958 cab. Anybody out there done this before? Is it difficult? I know the top part is spot welded and gets covered by the window gasket. Input please!