07.5 - 09 6.7L Powertrain
Little background of the truck, 08 6.7 cclb 90k miles with stock fuel and air (deleted and tunes/trans tuning) and 425s. So bought the truck about 6 months ago with 80k noticed in reverse it had a very low idle but never thought anything of it, then driving home from work one day I was in a rush...