Just got my new clutch and my GM manual says to insert a clutch pilot bushing before installing the clutch plate. The alignment tool that came with the clutch fits the spline but the end diameter is small. Looks like I need this bushing. I did not see any bushing when I removed the bad clutch. Is this bushing needed? The clutch I bought is LUk and for 2012 Chevy cruze turbo.