Here are a few pictures of my 1947.5 trucks interior. 1947 is the only year with floor shift only and no indent/provision in dash for column shifter. Some of the other interior features unique to the first AD truck, is the parking brake located in the center of the floor beside the shifter (not visible here). The windlace channel is attached with screws, and the doors open by pushing the handle forward rather than pulling back. The gauge needles are red, and the 80 mph speedometer has the high beam indicator at the bottom.
RdsLesTaken/Don

Interior:
http://i1291.photobucket.com/albums...n%20Trucks/1947interior2_zps90e51754.jpg
http://i1291.photobucket.com/albums/b542/RdLessTaken/RdLessTaken%20Trucks/IMG_20355_zps958caaec.jpg

Interior Close Up:
Notice the ignition switch with "handle" on early trucks
http://i1291.photobucket.com/albums...rucks/1947interiorcrop-2_zpsc3f11dff.jpg

Cowl With No Rain Channel:
http://i1291.photobucket.com/albums/b542/RdLessTaken/RdLessTaken%20Trucks/1947Cowl_zps878cad57.jpg