I am always towing with my TJ which is on 35's. I know I have gone way over what its rated for but I also have a little experience towing, I'm not just some idiot flying down the highway with a trailer. I used to tow this dump trailer a couple times a week, empty it is right around 2,800 lbs. I've had over 3,000 in the trailer, it was slow going but worked surprisingly well. I would not recommend anybody try it, but its possible. It does have trailer brakes.
Then the snowmobile trailer with two quads I tow all the time, usually a few hours one way. No trailer brakes but loaded is only around 2,000 lbs. Those that say a fourwheeler is too much just need to balance them correctly, you need some tongue weight. Kinda funny in that picture the jeep died so I was switching out paddle tires for trail tires on the quad so we could ride them to camp.
Common sense goes a long way. You don't need a dually to tow 2,000 pounds, but the TJ is not meant to tow either. Go around the block and see if you are comfortable, leave plenty of stopping distance, and know you will not be winning any races.
04 TJ - 2 KC Daylighters, 35x12.5x15 MT/R Kevlar, 3" coils, Rear 4 link, 1.25" JKS BL, 1" JKS BMML, 33 Eng. Hi-Clearance Skid, 8.8 with LS, D30 EZ locker, OBA