I only owned 3/4 tons and towed a 12500 lbs trailer for 9 years with my GM 2500. The hitch weight was just right.
We have a 39ft 5th wheel now and it tows much better with 16 wheels. Do not buy a unit with less wheel diameter. The Ford needed help on the rear springs compared to the GM but it tows much better and easier on fuel with the newer unit.
Barbara and Laurent, Hartland Big Country 3500RL. 39 ft long and 15500 GVW.
2005 Ford F250 SD, XL F250 4x4, Long Box, 6.0L Diesel, 6 Speed Stick, Hypertech Max Energy for Fuel mileage of 21 MPusG empty, 12.6 MPusG pulling the BC. ScangaugeII for display..