I really do not know what your problem is. But obviously you have one. I have towed travel trailers in the 10K weight range with a 96 12V 2500 for 125K miles all over the lower 48 and AK, and an 03 2500 for 12K over the lower 48 without any complaints on power. Both were kept stock all the way with manual trannies and I towed in overdrive until I started losing momentem on inclines, which was not all that frequent. I feel the trucks have done all I bought them to do and have not felt a need to "bomb" either. I can keep up with traffic and in most cases and I can pass many which are laboring on inclines. And I do not have to be my own warranty station.