Gents,
I have never attempted to study Dodge Modified Conventional Pattern vehicles as produced by the Chrysler Corporation of Canada during WWII.
To give some additional information regarding my source of information, it is the “Design Record - Canadian-Developed Military Vehicles - World War II” issued by the Army Engineering Design Branch of the Department of Munitions and Supply in Ottawa, Canada on Dec 31st 1945.
Attached are images of the cover, the forward to volume I, and the total vehicle production.
Given the source, I am tempted to believe that the production figure quoted applied only to Military orders.
I have consulted this web page in an attempt to understand Dodge truck production during the relative time period:
https://en.wikipedia.org/wiki/Dodge_T-,_V-,_W-Series
My read on this information seems to indicate that the Chrysler Corporation of Canada D15 was a different vehicle than the WD-15 produced in the USA.
I note differences in the wheel base, engine displacement, tire size, and the code T-222 (D15) vs T-114 (WD-15).
I am currently tempted to believe that the production figures related to the WD-15 shown above are actually related to US civilian production rather than Canadian Military production.
I am currently inclined to believe that the figure of “approx 27, 000” is likely accurate for Canadian D15 production.