Had a 2014 Hemi, 3:21 gears, bone stock on tires, etc.--travel trailer that grossed out about 9500#. Thought I was good to go. Hooked up with a weight distribution hitch and made a trial run of about 30 miles of mixed terrain (flat ground and some hills). I don't think that the tranny ever upshifted to overdrive, and the engine sounded like it was coming out from under the hood. Unless you are going to pull something like a Casita or Scamp, I'd say swap that POS for something with a Cummins in it.