Canadian Chevrolet Maple Leaf 4x4 artillery tractors?

[David_Hayward (RIP)]

Nuyt, I think that I have to say that the photo is proof that there had been civilian-type trucks ordered at some stage. There are two answers that come to mind:
a) Civilian orders for 1941 Models en train sequestred
b) Because of the urgency, GM in Tarrytown, NY supplied standard trucks that were 'off the peg'.

I am conjecting that the 4 x 4 military trucks were also built in Tarrytown judging by rego evidence of UK post-war disposals. Tarrytown exported YR and MS trucks to the UK before Pearl Harbor and the only Flint-built trucks I have come across were the Chevrolet-Thornton 6 x 4 YR trucks to French order.