Originally Posted by danieljhale
I bought a 2019 Subaru Ascent Limited (towing capacity 5,000 / 500) to tow a 2019 Airstream Sport 22FB (4,500 GVWR / ≈ 400 tongue weight).
My 2006 23' Safari's tongue weight shown in the owners manual under specifications is "600", dry weight w/o options. (empty propane tanks, maybe no batteries) We carry some things on a regular basis that get stored with the AS, along with a propane cylinder full and the other nearly empty. In the nose we have, portable lights, empty water can, small heater, TrailerAid ramp, portable waste tote (blue boy) and some miscellaneous items. Unhitched in storage, the tongue weighs 730 lbs. So some standard items like batteries and propane will push your tongue weight above the specs. I would recommend a WDH also.
My 4Runner is rated for 7,000/700 with the V8, however, the specifications say the maximum trailer weight is 5,700 lbs for the 4WD V8. Why there is a difference between towing capacity and trailer weight I don't know. This may or may not apply to your TV, but my 2006 23' Safari GVWR is 6,000 lbs.
My 23' handles very well and the WDH keeps the entire rig level. I've never had a problem and we took a 5,488 mile round trip in August, out west over the mountains (and winds) in Wyoming & Utah, back through Idaho and Montana.
One point I would like to make, a maxed out trailer will not handle as well as one that is just 75% of a TV capacity. I can tell a big difference between leaving on a long trip and just taking it back to storage. I wouldn't want to go any larger than my 23'. YMMV.