Really? Oops. Guess I missed it when yanking these. We did have to drill holes in the brace under the radiator of the 00XJ to line it up. That is probably where the nutstrip was.
Nutstrip is needed for the gas tank skid...not the front end skid.
The holes on the frame to mount the front skid with the larger bolts, are already pre-threaded. These are for the side mounts of the skid. You'll find those mounting holes right next to the sway bar mounting holes. There are also a series (5 or six?) of smaller bolts/studs along the front. The factory uses threaded studs, but you can use bolts if you want. You'll have to thread the holes under the front cross brace, but it's not all that hard. You'll know which holes to thread once you line up the front skid...