2021 Ram 3500 H.O.

4x4ord wrote:
I wonder if adding 150 lbft would add 150 to the 660 that your truck has stock or if the tuner would add 150 lb ft to the 800 lb ft of the automatic?

Either way, there’s stock engines pumping out more torque now and the almost 200k miles on our 07 mostly on the Crazy Larry tune (200 or 230 hp supposedly) means the entire drivetrain is fine with any reasonable “tow tune”.
Well save for the clutch, but blofgren has that covered already.