What makes a jeep turn like it has square tires? Brakes, ball joints or transfer case?

When it gets warm turning sharp right or left or even in reverse the jeep acts like it is running on square tires%26gt; Any helpful hints?|||Transfer case is binding. Try servicing first.|||Check the universal joints on the front axle, right at each wheel. I bet one or both is bad.|||cv joints/hook joints dried out and worn out .cvs usually clik when turnning|||bad axel hub