Need Help Finding Location of this Heat Shield

[Severdog]

Crawling under my XLT this morning to look at fixing up my rusty differential and I noticed this aluminum/fiber heat shield had affixed itself between the exhaust pipe and my differential. Kinda doubting that the diff needs heat shielding...I think it is for the bed but I can't tell where it was supposed to go. Anyone have a look and let me know where I should put it back? thanks

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