I don't know what happened, I was driving today on the highway. All of a sudden I turned a corner and went to give it gas and this crazy loud vibrating sound happened. I have no idea what happened but I gimped it home. When I got home I got under it to look first I checked the tires they were all fine, then I noticed the drive shaft where it connected to the trans looked new( so it had slipped no dust) so I grabbed it and it seemed loose. What could have made it slide I don't beat on my truck or nothing?