As mentioned by others, the only Australian assembled CMP to be fitted with duals as standard was the tipper. These are very common as the tipper was produced in large numbers later in the war.
Duals are also commonly found on the rear of 60L CMPs, and also non-tipper 60S CMPs, but these have all been fitted post war, possibly by disposals dealers in many cases, who offered them as an option. Many more may have been fitted new by tyre dealers over the years, as supplied for post war British trucks, eg. Morris, Bedford, etc., and others would have found their way directly off such vehicles. Consequently a wide variety of duals can be found on surviving CMPs, with 4, 5, 6, 8, or 10 cutouts in the wheel centre. I believe the original CMP tipper wheels had 6 cutouts, however it's not something I've studied exhaustively.
I've only come across one CMP with home made wheels, which I found almost as amusing as the various other mods on the truck.
