So sliding this idea across everyone one here, I've had thoughts of doing a diesel swap in my 03' but don't know which motor to do. I would love to do a Cummings out of the new Frountiers or Titans but I bet those motors are pretty pricey. I would do a 5.9 Cummings but I have no idea if it will fit the engine bay, along with the fact of can the suspension hold the weight of the 5.9 or will i have to swap them out too. I also know the other part with the transmission and ECU. What do you guys think? Which way would you guys go? Trying to get an idea of where to start.