plus the canadian ones had steel hardtops, heres the one I have, its a 1952 with 5.83 gears and I believe it to be a 230 flathead but I haven't checked the block for numbers has plow gear and a homemade plow
Mine had an original steel hardtop.....it was an original one, but not original to the truck. Had the sliding window and all. I think you're right about that being a Canadian only deal because mine had all kinda insulation in it. It was rotten but it was there. Also.....if the M37 had a heater from the factory, it was gasoline fired. LOL There were add on versions that used hot water.