I have a 2010 Tahoe with a torn rubber flap guard on the center underbody. Around 7” square I’d guess, fastened at each corner. It looks like a small splash / dirt guard covering an electrical junction box or computer box of some sort. I’ve searched everywhere and cannot find a part number or nomenclature for this flap. It’s half torn & dangling and I wonder what to replace it with. Any old solid piece of rubber membrane of equivalent thickness? I was hoping for an oem one that would fit perfect.