F-150 short bed, stepside, 4 X 4, 4.6 engine, no tow package, pulled 22' open trailer with unfinished but running BB Cobra to Knotts, from SF Bay Area, over the grapevine, and back this past weekend. Piece of cake, even with the two storm fronts we went thru. Hadn't seen rain that hard since the Nam. Did not realize I needed to push the "overdrive off" button each time I stopped and turned the engine off, so towed most of the way in overdrive.
838 miles