First, I left it on the bike, completely intact. I hit it with an impact driver and that didn't work. Then with an air impact driver and that didn't work either - the bolt just spins. I took the fork off the bike, flipped it over and, using my weight, compressed it fully against the ground and hit it with the air driver... spins. I drained all the oil and took the springs out and tried to jam a broomstick against the plunger - no dice. Out of ideas. Anybody have any recommendations?