my 08's front suspension started making popping noises when moving at low speed with steering wheel turned after I changed the front control arms (worn out bushings). The problem was fixed after I ordered new bolts/nuts (the single bolt that installs vertically at rear of control arm) and torqued them to the spec. I'm not sure if I hadn't torqued them enough the first time or what, but the service bulletin referenced in this thread says to use new bolts/nuts (they bolt was apparently redesigned to be slightly wider) so I did and it worked. I decided to also replace the sway bar links as they probably are getting worn with 90k miles and they are cheap and easy to replace. Thanks to all the contributors to this thread.