I installed a very similar style oil pan skidplate years ago and a rock soon snagged it and ripped it off. It pulled a couple of the bolts out that were holding it in place since the locations where its bolts thread into are not all that strong. I would not go with that type of skidplate again, I have yet to see a small size skidplate made for that area I'd bother installing. I ended up with a full-size skidplate that extends from the t-case skidplate all the way to the front of the engine.
This is very similar to what I've been running for about ten years now and it holds up to my 'drive by braille' style. Skid Row made the one in the below photo at
http://www.skidplates.com/Engine_97_TJ.asp which is similar in concept to what is on my TJ that is no longer made.
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