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Judging from the floor it more than likely was a 3 speed on the column. It appears you have the SM465 transmission. Low probably doesn't feel like low probably due to a tall gear in back 2.73 or 2.56. Sometimes there is crud built up in the top cap and you have to push down and turn with a large pair of channelocks so the teeth in the pliers give you grip.
Put it in neutral before you remove it. That will help when you go to put it back in.
well, not that you guys care