So i have a 2007 yukon denali AWD 6.2 with 121k miles, fresh trans, just got it from a dealer and it started doing a strange rumble strip type vibration only at 60+mph when turning right have to be turning the steering wheel at least 45 degrees or more to replicate it. Doesnt do it when turning left, or driving straight down the highway. Roads are smooth, doesnt happen when braking, front diff is full and clean sounds like front right area. Any help is greatly appreciated.