Greetings from North Pole Alaska,
So, on my 2 week old 97 TJ, Im crawling around still getting to know it, and, I notice that, on the driver side, 2 of the 3 bolts on the skid-plate have been replaced with a larger bolt. The original 3rd fell out in my hand when I wiggled it. Bottom half of it was rusted thread free, and I could feel no threads in the hole when I stuck my lil pinkie up in there. On the passenger side, 2 of the 3 originals are still there, the 3rd, missing and looking like the hole I just had reveal itself on the other side. No thread up there either.
So, Im not sure whether the 2 replacement bolts which are obviously bigger diameter then stock bolts, were put in after somebody re-threaded the holes, or what. My original thought was to break out my large size taps, and retap the 2 holes I found, and go from there. But that frame metal isnt all that thick that it can hold many threads, and I dont know if there were welded nuts on the inside of the frame originally or what. Anyways, I thought maybe someone knew of a better way, like a blind hole fastener for this size metal, or a large self tapping bolt, or what? Im not super fastener savvy, so there could be some trick thing out there that will square me away, and I dont even know exists, so, thought I would call on the gang here and get some suggestions.
Thanks in advance, and have a great day all!