You'll want it to be snug. They make 1" and 3/4" sizes on those bumper mount adapters.
Ah I see yep "jeep D ring bumper mount adapters" very nicely named products lol
I like the RockJock option too & from what they say it fit the Roadmaster towbar too. (I'd forgotten about the RockJock)
Yeah the bummer is that it looks like they use the same top bolts for the bumper that I'm already using for my tow hooks so I'm not sure they'll work for me. I don't know if there is enough material on the frame off the frame rails for these