Id be more than willing to bet you'll be just fine. My buddies rig on one tons with 44s and a sbf engine with 1/4 inch plate everywhere on the tub, and I mean a lot of steel, he's tipping the scales a little over 5100 lbs. My rig on waggy 44s and 33s with fiberglass tub and hood loaded with winch, highlift and all the other trail goodies I figure I'm prob around 3800-4000lbs. My trailer is also rated for 5900 lbs and pulls just perfect.
The Right is wrong and the Left is stupid
Personally i would not buy anything less than a trailer with dual 3500# axles (7,000# total weight rating). A trailer is a lot like a welder, you need to buy more than you think you will need. My trailer is an 18', 7,500 lb rated, but only has one brake axle. The one brake axle does fine but many areas by law you are required to have all axles have brakes so if i ever upgrade i will make sure to have dual brakes. mine also has a wood floor but the next one will be steel. Wood would be okay for just a jeep but all of the other crap i haul sometimes is pretty hard on the wood floor.
x2 on the suggestion of at least tandem 3500 lb axles. I have a trailer of this size and constantly wish I had gone to 5k axles. I have a 14k gooseneck flatbed, but there are times when it's just too big or already has something on it, so I use the smaller one (my little one has an 18' deck).
You should be fine. My Scrambler weighs in at about 4100 lbs. Load your Jeep up with everything you'd normally take and go get it weighed. You'll probably be good at that rating, but you don't want to be maxed out or close to it.
__________________ '81 Scrambler w/ FI 360 AMC, 33x12.50 BFG M/T's, 5" of lift, ARB'd Dana 44's F & R, Dana 300 clocked & twin sticked w/4:1, Warn XD9000i, etc...
2002 Grand Cherokee Limited, 2008 Overland Grand Cherokee, a 1976 CJ-7 in pieces and 3 more off-brand 4x4s............... John N
I built this one a few years ago. Axles rated at 6k lbs each but found out that with a hub upgrade the rating would go up to 7k lbs. The only other thing I might do is add brakes to the second axle especially since a lot of my towing is in steep mountain terrain.
It used to be, God bless America, it has become God help America