Ok I left the stop sign and did a burn out while making a left-hand turn. It was a good burn out. Now I have a vibration noise coming from the rear of the car. Feel it in the seat. Have not checked it yet but thinking U joint or maybe a wheel bearing problem. Have green axel bearings. Have heard stories on them they don't like side to side stress. Will get out the jack and start with drive shaft U joints. Hope it is one of those. Any thoughts would be appreciated. I do have the standard 8 3/4 rear end. It was rebuilt with new ring and pinion with carrier bearings. So don't figure it is the rear end.