Hi there
most jeeps are built to a military standard, which is carry 1000kg tow 3500kg this is if the vehicle in question has a chassis. This will be the min so you will find your jeep might do more but you should be safe to use this as a rule if it is Japanese, USA or Land Rover product. In reality they will all do way much more but you won't over wear your jeep out using these figures
Giles