Originally Posted by ncnmra

I'll do the job in the next few days, but last night I went to check with a torque wrench set to 110ft-lbs. The driver's side was fine, but the passenger side moved about 1/4 turn before clicking in. I went for a drive and the clunk was completely gone, so I can safely say this was the issue, even at a low 110ft-lbs setting. It was like driving a totally different car, I didn't realize how much that clunk annoyed me.

@Dj_or_dj : Do you know if the spec changed for 2008+? I read somewhere that GM updated specs for that year. I also read that the TSB recommendation of 160lb-ft was on "wet" threads due to the Loctite.

Given that the issue was solved at 110lb-ft, I'm certainly leaning to less than 160. Last thing I want is a borked axle.