I have a 2000 Wrangler Sahara with the 4.0L and an Automatic. I did find a 3500 Lb rated hitch for it at a local trailer supply shop. I have a 3" lift kit with Rancho 9000 shocks.
I hooked up the Ultra to it thinking I could tow it to the lake and unhooked it right away. I suppose with air shocks or something I could have made it work, but it was too much tongue weight for the stupid thing.
Also the brakes on the wranglers suck. I was at the lake with the lake lice one day. Coming home from the lake a signal turned red in front of me. Since the back brakes are drum and hadn't dried out completely, when I pounded the brake pedal, the fronts locked and the back brakes kept on rolling. I rolled right through the intersection, fortunately I was making enough noise everyone stayed put till I stopped.
Now I love that jeep, but I do know its limitations, and the dual jet ski trailer is about all I am towing with it. And that is only for about 1.5 miles to the ramp from my driveway.