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Anyone? I thought this would be an easy one.
Having a discussion with one of the veteran parts guys at the dealership wasn't much help. He thinks A1Z is the RPO for ZL1. It isn't, it's 1AL37. RPO codes posted for MY 2021, it appears they haven't changed.
Looking on GM's site they make no mention of the short throw shifter in the 1LE option details for the SS or the ZL1.
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