Yeah...Bill it's been aggravating for sure. I was going to check balance on the rotors next, then axle runout. Smooth riding now Brother and to think some guys don't want to admit that an old redneck wrench like me has a significant find and to be so easy and very inexpensive (IMO) to fix. On top of that...putting all of their faith in the GM engineers, service writers, service techs thinking just because that these guys work on them everyday that they could not have possibly overlooked this for 4 years now LOL. I am definitely not an engineer but I also don't overlook the obvious.... Cheers Boys!
RT