I have a 2011 Jeep JK Unlimited Rubicon 4 door and the official payload is rated at 1056 lbs. (On the regular 2 door Jeep JK the official payload is rated at 892 lbs.)
I'm adding a roof rack which adds 88lbs, plus I want to carry 15 gallons of water which weighs 125 lbs. and a 5 gallon gas can...