The tensioner pulley doesn't allow access to the tensioner arm because of the supercharger so no way to remove the tensioner arm, but I wanted to replace the pulley since the nut was rounded off which makes it hard to operate the tensioner Since the tensioner pulley comes with a new front nut, I wanted to replace the pulley and nut, so I just cut them off so I could get play in the pulley shaft to get it off.