I bought my son a local KB-1 truck when he was 3 and just recently found a floor shift trans. for it. The original is on the column and the shift cable is bad so we looked for years to find this trans. I do need the shift handle/lever as they cut this one off on the top of the trans.
I think mine was missing, anyhow the chassis is now long gone unfortunately. This one was a tonner as well. The original grain box from 1946 became the bed floor.