the jeep should hold only half of water and half antifreeze. If it still leaks than you should replace the housing that holds the antifreeze and you can always get it cheaper at the salvage yards.
you might want to check the water pump. look for a leak just under the pump. either the seal or a small hole in the housing. if the leak is out of the hole then replace the pump.
that is my guess cause there needs to be more info on problem.