[David_Hayward (RIP)]

GM of Canada introduced the Walkerville-built Chevrolet Heavy Duty or Extra Fort in French, as of 1st Juy 1930. They were based on the equivalent GMC and used Chevy engines but GMC trans. This continued until 1833 when Maple Leafs replaced Chevrolet HD, but again were GMC-based. Basically a Chevrolet equivalent of GMC for Chevy dealers. It then gets complicated from around 1938 with COE being introsuced, and GMC adopting Chevy or Chevy-based engines shared with MLs, and MLs using Chev and 224 cu in Chev-based engines. I think ML was dropped for 1952 in favour of GMCs, and Chevrolet-badged heavier trucks.

Into the pot we must add firstly from 1935-39 Oldsmobile trucks for export only including for Holden assembly, and secondly 1937-9 export Chevrolets, GMCs and Olds trucks all being US-built 'clones' [component-sharing and in effect badge engineering], with COE available before Canada in 1938 and in the US in 1939. GMC and Olds trucks used the Olds 224 cu in '224' engine, Chevrolet the 216, and all were available with Hercules diesel engines!