As close as I can figure. 1941 model 9n started with a one piece aluminum dash. Then was switched to a one piece cast iron dash. Then as serial# 80770 (still in 1941) switched to a two piece cast iron dash. Does anyone know at what serial# they changed to the one piece cast iron dash? I have the 1941 9n with the one pc. aluminum dash and am trying to figure out the serial# (ballpark) since I can't read the engine #s.I know I ask a lot of Questions but I can't help myself this history stuff is very interesting.
Thanks,
Kirk

Kirk,

From Smith's site:

"1941 Serial number 9N46018 - 9N88933
The tractor was becoming very established and most changes now were minor engineering changes. The grease fittings were moved from the front side of the spindle to the rear side. The brake pedals were redesigned so that the right and left pedals were now different. Changes continued to the tractor's dash. It was changed from one piece cast aluminum to one piece cast iron. Then at serial 9N80770 it was changed again to a two piece cast iron column with a steel plate dash panel. The shifter base was also changed to cast iron. The steering wheel changed to a plastic covered 3 spoke design with a chrome nut and washer holding it on. The ignition key moved to the left upper side of the steering column."

• Smith's Old Ford Tractors