UPDATER: The 0-10 early CJ-5 speedos did make it into early DJ-3As.
I found this NOS King-Seeley 0-9 speedometer core on eBay. I show it below next to my 0-8 face, whose day-glow white paint flecked off as I cleaned it. I can confirm it is the same size and seems to have the identical parts (though the gears may differ slightly given it goes to 90mph).
The 0-8 speedometers (manufactured in mid-to late 1955) were installed in early 1956 DJ-3As (as well as a few other models, CJ-5 being one). Later in 1956, Willys moved to the 0-9 white face speedometer core. About a year later (sometime in 1957?) Willys moved to the familiar 0-9 orange face. The early CJ-5 0-10 speedometer clusters made it into a few DJ-3As. One side note, those early 0-10 CJ-5 clusters were almost, but not quite identical to the Aero clusters.
The seller has more units. You can purchase the 0-9 unit on eBay here:


















