Kind of looks to me like the shaft going into the Supercharger is moving, not the pulley itself. Take the belt and pulley off, then thread the bolt back into the shaft so you have someting to pull on, and see how far back and forth the shaft moves. Im sure there is some allowable endplay (more so if the gears are straight cut, less so if they are helical) but either way that is not normal. If the pulley is moving on the shaft, you should see scuff marks on the shaft. Also, When I first installed my Griptec pulley on my 2017 setup, the hub that Griptec provided was incorrect, causing a misalignment (not the back and forth that yours is doing) They sent me an updated one with the correct offset shortly thereafter.Is this normal for a procharger?
Yes, just call them and tell them what you have. They gave me a new hub because I purchased the pulley and hub from them, but Im sure they can sell you just the hubIt is definitely play in the shaft of the procharger but it seems I may have the same problem as you of having the wrong hub. I called procharger and they said there should be some play so I guess it’s okay. Did you call griptec to get the hub?