Thought I would ask before letting the truck hang out at the dealership for another 2 days. Well i did crawle around and checked to see if anything loose but nothing that I could find. Have to see if I can get it to repeat again today so I know how and when it does it, but did make an appointment so its going back this week. Did notice when i was rocking the truck front to back in park looking and listening that the thing moves a ton more than expected. Like if top of wheel was 12 on a clock i can rock forward between 1 and 2 and vice versa to the rear. Didn't think there would be that much play in the drive line system.