I have a strange issue with my 04 6.0 torqshift, that hopefully someone can help me. After trans is up at temp and been rolling down hiway for an hour or so and you then stop and take off again the trans will hang in 2nd gear till 3000rpm or so and then slam into 3rd so hard the dash rattles and you break your neck and that it is at medium and sometimes light throttle. Any info would be greatly appreciated. acting this way for last 2 months or so and its not every time but pretty dang close. thank you