I think I would like to swap a diesel into my tow rig...so I have started gathering information about possible swaps. I would like to know where my fellow CK5ers stand on this issue. The rig is an 89 Sub that is getting D60/14BFF swapped in the next couple months, so the drivetrain should handle whatever I throw at it. What engine and trans combo (automatic) do YOU think is the way to go? 6.2? 6.5? Duramax/Allison? Powerstroke? Cummins? (is this heracy?) Which of these motors packs the most punch to price ratio. Which has the most available aftermarket go-fast parts. I am looking for opinions and facts. And yes, links to other articles is good too. Pics are the best.