In the early 80's I did quite a but of towing with a Dodge Ram Charger....simular vehicle in that it was short wheel base, and had a 360 engine. I never had any sway problems, however I was towing a 24' Argosy with a Reese Dual Cam hitch.
Don't think I'd want to tow a 31 footer with that short of a tow vehicle, but it might work with something like a Hensley hitch.
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