Anyone got a 3500 Ram 6.4 Good or Bad?

6.4 shifts gears A LOT pulling anything. Keeping in its torque zone. Poor mileage with trailer,

But as long as you don't overload it with too much trailer, its ok. For real pulling diesel is the only way to go. IMO. About 12k trailer I pull with one. 6MPG with 12K lb trailer at free way speeds. Really.