The 3202 has a solid axle with 1/4" key stock.
You know what I found to work by accident?
Soak the axle with penetrating oil. (which I;m sure you have)
Then take an air hammer and a block of wood to the axle, wheel, whatever you can that won't cause any damage.
The outrageous vibration from the hammer shakes things up pretty well, and hopefully the key should walk enough for things to move.
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