on the superduty ford it says 500/5000 for the bumper mounted ball and 1250/12500 for a w.d. hitch....class/iv or v. but doesn't make clear if using the receiver (not bumper) without a w.d. is the same as with......
below is the info for the 1 ton dodge dually, taken from their website:
While it's not listed in the charts, tongue weight [i]
is also an important consideration. The recommended tongue weight is between 10 & 15% of the trailer weight. However, the maximum tongue weight on Class III (The bumper ball) is limited to 500 lbs, and Class IV (The receiver hitch) to 1200 lbs.
This requirement overrides any recommended GTW rating, between 10% and 15% of gross trailer weight (GTW). Additionally, the GAWRs and GVWRs should never be exceeded. "
so the one issue i'd want to be clear about is rear axle load/weight rating. if you don't use the w.d. system all of the tongue wt is on the rear axle...along with any payload in the truck bed and part of the cabin payload and fuel. so if might be useful to do this calculation/measurement for the rear axle. i'm not sure about the dodges, but it seems that i recall the dually 1 ton ford has a lower netcc than the 1ton srw, because of the added weight of the dually set up.....i think?
so how has the towing been so far? with all of that power and great brakes you must me pulling that can without much effort.