Looking at a 2nd. Gen Ram 2500, was hoping to find a V10 with an NV4500, but instead I have found a 5.9l magnum with the NV4500 and 3.55 gears. Years ago I had a 1998 K2500 with the 5.7l / NV4500 / 4.10's /33's and it seemed to struggle with anything over 6,000lbs.....on paper the 5.9l magnum and the 5.7l vortec seem "comparable"......anyone have experience with this setup? Tow capacity is listed at just under 9k and I would probably use every bit of it. I know the 5.9l will be thirsty, but I am not really concerned about that, I don't mind going up grades at 55mph and not using 5th gear when towing as long as the power is there. Seems like you can wake the 5.9l up a bit with an ECU reflash (to delete the "death flash" from the dealer) once you have sealed up the intake properly and dropped in a cooler t-stat.....but again, I am more concerned about reliability.