"BTW, this is a '47 3100, with a 1949, 216 engine AND I "THINK" a '49 tranny?????"A 1949 truck 3-speed transmission with a floor shift? That type of shifter would not be original 1949 equipment. You might want to post a photo of the shift linkage on the transmission - someone might ID/recognize what it is.
However, 1947 3-speed transmission was a floor shift, with a parking brake handle near the transmission.
What is the casting code on the transmission? 
