You can pull what ever the limits are on your hitch. I have 10K hitch, I tow 7/8K trailer, jeep combination. I have no problems with towing a trailer. The weight on the ball for my set up is about 600 to 700 pounds, You have to figure the ball weight in to the truck and camper weight. After towing awhile you get to know were to park the Jeep on the trailer by the way it feels behind you. Get all set up right, mark it so you can set the jeep on your next trip.Once  all is set you will hardly know you have a trailer back there.
trail-exporer says it right find the "sweet spot".