I got that #6 part installed with the front axle and transfer case skids by an autobody shop I use since my GC didn't come with the skid plates from the factory. I'll add the fuel tank ones eventually. My Jeep dealer kept telling me that I couldn't install the brake/fuel line skid strip (#6) because my VIN didn't allow for it. Apparently Jeep doesn't train their parts guys very well or else they would have seen that the #6 skid replaces the stock plastic one for non-skid plate group equipped GCs.
I had to just have my go-to autobody place order everything and install them because I was tired of explaining to Jeep what I wanted and have them basically say I was dumb for asking.
2012 Laredo X : QTII, 430N nav, true blue pearl