If thats whathe was refuring to you would have tomake a special sleeve and onethat would still alow for the oil passages that feed thru the hollow shaft if you have extra slop there and sah a 2005 thru early 2008 and developed extra slop and noise I would bet the front bearing is toast and the helical gear is flopping around. You would probably have a mess of fragments in the bottom rear left of the oil sump pan. Lately will onthe technical library I was thinking of a way to inspect it withoutpulling the sump pan. Thoughts like would the be extra material stuck to the crank sensor or could one possibly snake a scope thru thrcrank sensor hole into that sump area or close enoughto view that area to look for the chewed up bearing cage parts? I wish I was home near my engine cases to have a look see. I would bet if you remove that spring you will break a lot of stuff. I would also suspect if you having extra slop there she is ate up.