Changed mine a year ago. I had a similar problem, no socket, nut frozen. I drowned it in kroil and rapped on the nut to work that oil in. I used heat on it until it was smoking and with a brass punch and hammer broke the nut loose with out damage to the slots. Good luck, I can sympathize with working out in the elements. Waiting for all this rain to pass out of my area so I can start troubleshooting my own problem...