Another solution would be to go out and pick up new/used 1 ton dually, a new Reese Titan receiver, and an Equalizer 4-pt sway control hitch; all weight and sway control problems solved.
We had a similar problem with our 2014 Outback 298RE because it had a dry tongue weight of 925#'s.
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Carol & Rick
Jack (
Border Collie Mix)
Daffy "The Baby" (
Lab Mix)
2016 Keystone Montana 3711FL
2019 Ram 3500 Laramie, Crew Cab, DRW, 8' Bed, 6.7L Cummins