Our very first trailer was 3600 dry. I started with an F-150 and it towed great. Then I got all smart and bought a Jeep Grand Wagoneer. Not a good tow vehicle. Then came the Toyota landcruiser FJ-60, even worse tow vehicle. In theory they should have done well. Perhaps I was spoiled by the F-150. These days we tow 5600 dry with a Suburban 1500. It does pretty well with a tow weight rating of 7200. If I knew then what I know now, and I wanted to tow with an SUV, it would be a Suburban or an Expedition. The V8 and the heavy chassis takes some of the potential sway issues away.