Did it in the late 70s at a service station. You would break the bead with a hammer that was designed for that, demount, mount, and pray. I always filled them under the lift arms of the hoist. Had only one blow, it bent the pins that held the arms on the lift, and threw me against the wall, no, I wasn't using a locking air chuck, I was on top of it. Those things scare the sh*t out of me to this day.