Ethan, that's exactly what happened. I don't have a 1" open end thin enough to hold the top nut. I slowly turned the bottom nut. My arm was blocking my view and I stopped to take a look and POW! In addition to thin open ends, I also need thin-walled sockets and good snap ring pliers. And the garage fridge is empty. I guess those 23x10.5 TruPowers will have to wait for next year!