I got a locking hitch pin a couple years ago, slapped it in,used it a few times and then forgot about it. It's stainless and has a cap for the locking mechanism. About three months ago I picked up a shackle mount that slides in the hitch and I tried to put it in but I couldn't get the key in the hitch pin. I thought it was kinda strange, but no big deal, sprayed it with some penetrating oil every day for a few days and eventually got the key to insert, but the damn thing wouldn't turn. So for the past two and a half months I continued to spray it down with penetrating oil, graphite, "lock unfreeze", acetone and ATF... basically everything known to man to unstick corroded metal.
At this point I'm ready to take off the bumper/hitch and use the O/A torch to cut off the damn thing. But being the diplomatic gentleman that I am I figured I would consult with the community first. Any suggestions before I bring down the blue torch of freedom?