The local sawmill used half-tracks back in the 50's to skid logs,when I got to the point of trying to dismantle a tire and rim I went and talked to one of the old timers that used to work in the tire shop,he said they never bothered trying to take them apart,when they got a few with ruined tires they would throw them on a pile of scrap wood throw on some gas and light them,the next day after it all cooled off they could take them apart!
I used the sawzall and chisel method,works well on WW2 Dodge rims as well.