I have the same problem. I bought a 15 3500 hd gmc with the 6.0. I “upgraded” from a 2010 ram 1500 5.7 (390 hp btw) with 3.54s. This truck is a dog compared to the ram. Have a 20ft car trailer and it knows it’s back there even empty compared to how that truck pulled it. I’ve even had a 9200 cab and chassis on the trailer and the ram had pulled it like nothing. Very disappointed in this gm, is there anything I can do to help power wise that actually works? Or do I just have to get used to being underpowered or buy a 2500 ram?
