I wanted to advise that AMD apparently has a run of damaged rear Duster bumpers part number 990-1370. I know that because I have two of them here - the second to replace the first one is damaged in exactly the same way. Here they are, side by side.
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Both came in new sealed boxes, and looking at the backside it seems obvious the damage was done in the factory when that bumper was a flat sheet of steel.
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I waited a month...
Reproduction Duster bumper
