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The supercharger pulley on the supercharger now is really chewed up on the edges so I want to remove it. I can't see any branding on it so I'm not sure what the origin is. The previous owner said it was a stock pulley, but it's definitely not OEM. It has 4 hex bolts and two open holes. I removed the bolts, but the pulley isn't budging. I tried inserting two bolts into the previously.open holes thinking it might separate the pulley since it appears to be in two pieces. The bolts only go maybe 1/4th of the way in. I'm trying to avoid prying it off to avoid damaging the shaft. Any ideas how to remove the pulley?