Sorry for the newbish question, but I really am nervous about screwing this up. Reading other threads it looks like I need to remove the non-drive side first and then pull or tap out the drive side. There's a hex screw on the non-drive side and another round thing with several holes in it surrounding the hex screw. From what I've read the hex screw is what needs to come out, but when I loosen it it stops turning and I don't want to force things out of fear of stripping something. Should I be removing this screw first? Clockwise, counterclockwise? Should I remove the thing with the holes in it first (assume I'd need a special tool for that). Thanks.