For some reason vehicles with dually tires have this quirk where the Hot Wheels Semi Slicks and Offroad/Snow tire compounds replace the dually tires with one wide wheel on each side. Not only that, but regular unmarked Semi Slick tires and Drift tire compound use the same texture as the Sport Tire compound. Drag tires use the same texture as the Slick tire compound.
I feel like instead of getting rid of the non-dually rear tires entirely, this would be better handled as a conversion option.