ThanksI concur. Heat the hardware with a torch and keep lubing it with penetrating oil (liquid wrench). Seems counter intuitive as heat expands metal but it pulls the oil down into the threads. Sometimes it takes rounds and rounds of this. Bigger wrench/ more force theory is great also however be aware of consequences of sheering off hardware. Might work to your advantage OR might create a new nightmare. I would make sure frame is off your rubber too (sorry if that’s obvious) as torch heated oil dripping on it may not agree.