X4 on all the good inputs given so far. I regularly tow an enclosed car trailer behind my motorhome. Tongue weight of my Haulmark trailer is about 700lbs. with the car in the trailer. The place where I get my motorhome serviced actually has a tongue scale and weighed it. The receiver on my motorhome is rated to 1000lbs. tongue weight with a WDH and only 500 lbs. tongue wight with a regular hitch. Therefore, I use a WDH. The one I use is an Equalizer Brand with 4 point sway control. Seems to work well. Hitch and load bars available in various max. tongue weight/loaded trailer weight combos depending on what you need. During initial set-up, based on your tongue weight you insert a specific number of metal washers/spacers to set the correct tilt angle of the head assembly. Once that is set, no more adjustments are required. No chains. Just insert the load bars, hook up and you are ready to go. Good luck!