I have seen a photo of a Canadian M10 in Korea. It was armed with a US-style 76mm gun, so it was not a Wolverine (17 lb'er). The Shermans that replaced the M10s issued to the LdSH, due to concerns about the open top, were in my understanding, M4A3 Shermans, not M4A2 (diesels). Apparently, Canada did buy some ex-USMC diesel M4A2s after the war which were used for training in Canada and ultimately ended up with various militia units. I seem to recall one outside of the BCR Drill Hall on Beatty Street in Vancouver.
Does anyone have any more infomation?
(edited to fix typo)