had a few over the years thats had a death grip - truck impact, oxy, 5 ft breaker bars, would'nt budge
first cut off the sensor part, so can gauge thread line/get a old socket on remnant. Then drill a small series of holes, towards the sprocket, break off a hacksaw blade, and pateintly file to link them. being careful not to go down to the threads. Tap with a chisel of old screwdriver to expand the gap, it will releive tension on the metal. Tap a proper socket on it, and it;lll pop off almost as if hand tight. you;ll wonder that the fuss was about?
junk the gator thing, they're toys.