I asked last week if anyone had done this before and it seems no one has on a 2012 truck 5.7 here's how I did it, I had this bracket/pulley that I ordered a few years ago, that was the wrong part for what i needed, it's Dorman #34178, it almost fits but doesn't so I made an adapter plate from a .25" piece of scrap aluminum. Had to shim with washers in a few spots. I'll also need to find a different pulley, this one is 7 ribs, needs to be 6. I still need to take it apart and make it look pretty but it works.
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