I don't have much access to do any sort of fab work and I'm looking at some of the more bolt-in simplistic diesel swaps. I'd like to keep to an automatic as after years driving a Mack I don't have much desire to shift gears all day lol. I'm looking more at the 3.3 or 3.9 Cummins although I know there are a few other options such as the Isuzu, Mercedes, etc. Anyone have any experience with any of these to determine the most reasonable route? I want it to be done right when the time comes and be ready to serve as my daily driver still.