I installed this on my ls3 3 months ago. Fit perfectly and work perfectly. However, I had to disassemble it to replace the oil pump. I have all the necessary tools to remove the pulley. I used a pulley removal tool made for a GM power steering and grabbed the metal flange next to the shaft. He didn't move. The pulley is frozen in place. There was no sign of corrosion but the next day I tried liquid wrench, heat, impact and other methods to loosen the pulley but nothing worked. Finally, theโฆ