Good photos, looks like rust back in there, if you could scrape some of the rust off, it might work better. Don't have a TJ myself so I'm not much more help than that. Good luck!
2011 Nat Green Rubicon Unlimited, RR XHD Front & Rear, Warn M8000, Rock Hard 4x4 Rails, Flipped Mirror, Cobra 75 CB, MyGIG & Infinity, NAV, Homemade Bikini Top, 35x12.5x17 Toyo MTs on ATX Crawls w/ 0" offset (4.5" B.S.) with trimmed fenders, 2.5" AEV lift, JW Speakerish fogs 12 cree Auxbeam lightbar under hoop, backup LEDs in bumper