Every time I looked at those items on my jeep I wanted to ask the same question. But when got back to the computer I would forget.
And now know.
Thanks
Roberto, I noticed in your photo a lock bolt welded to floor to hold the passenger seat down. I have one also, but is welded parallel to the tool box seam. I have often wondered if Bubba installed that.
Ken, that gate bolt is a common add to the M38 passenger seat. I can't find it as an offical MWO but had it on mine and have seen it lot on m38s I've taken apart.