For some reason I can't edit the above post so as an addendum.
American built WC51s were used by Canadians in NW Europe.
Chrysler Canada also made several thousand similar vehicles (designated D 3/4 APT T236) for which differed from the US built vehicles in that they were equipped with a 95 HP engine and a narrow cargo body (dimensions - 82 inches long, 21 inches deep and 53.25 inches wide) designed to be air portable by Dakota aircraft.
The above from Blueprint for Victory by William Gregg.
(Note Canadian vehicle production would have been used by all British supplied forces).