Just to add my op. i have a 2014 wk 2 hemi no air suspension. rro leveling kit and .5 rear spacers. 275 60 r20 tires. i have done a lot of towing at extended distance and highway speeds. i tow a travel trailer that is 5k empty so i figure i tow around 6k with my family and luggage. i tow a 18ft car hauler with a 3500 lbs kubota. i figure this setup is around 5k.
I have a weight distribution hitch and do not think i could tow my travel trailer with out it. My trailer has a unloaded hitch weight of about 600 lbs. i have moved it around in my yard and in camping locations with out my weight bars on and it is very unbalanced. However i can load down the camper, luggage, wife, kids, dog, fire wood, food, drinks, clothes, camping equipment, and everything else. I setup the weight bars put on a sway break hook up my brake controller and comfortably drive any where. i live in western pa so we have plenty of ups, downs and winding country roads. i have towed it many hours feeling very comfortable. The kids sleep and the wife and i enjoy quality time together
. Things that help are loading correctly and learning how to set your bars. Some time behind the wheel helps as well to know how the rig will react in different situations. I am adding a set of air bag helpers in my springs for next season for the simple reason it will allow me to be less concerned about how i load things.
i do not use my weight hitch with the car hauler because it is a 2" ball and my wd hitch is 2 5/16. i never tow my tractor more than a few miles but i must add that i have to position my tractor just right to keep from over loading the jeep. Even with this done correctly the ride is very bouncy and not something i would want to do for and extended period of time. my air bags may help the bounce but you must remember air bags do not put any weight back on the the front tires of the jeep. This may not seem important but any one who has ever tried to stop a trailer and had it slide your front tires will have a different opinion.
in the end my op of the wk2 towing is it does almost as good as a 1500 truck. the biggest down side is uni body frame, short wheel base, and the width of the vehicles mirrors. i do not wish i had a smaller camper and have a 1500 truck that sit in the garage on every camping trip because the jeep is a more comfortable vehicle.