Head scratcher: The circled piece offered by AMD and others is a bench seat forward adjustment stop that the factory welded to the floor shift tunnel, including cars that got bucket seats. Apparently the purpose was to keep bench seats from adjusting into the floor shifter. Toss it in the scrap pile unless you really want to have a bench seat with your console. Besides, the bends aren't correct.

Note that the factory rear bracket had slotted hole edge distance 1" on one end, 1 3/16" on the other. If the repro bracket isn't the same, position the bracket as needed.