How to replace radiator in 2000 Jeep Cherokee limited?

To do that, remove the bar that runs across the top of the radiator and disconnect it from the plastic fan shrouds, Remove the electric fans. Remove the air filter box, remove the lower radiator hose (put a pan under it...you will be draining the radiator.)Disconnect the upper radiator hose, and also the transmission lines. If there are any brackets between the radiator and the a/c condenser on top, unbolt them as well.
The radiator should lift straight up with a slight bit of maneuvering. You may want to change the order of removal on some items I listed but that is fine...I may have mixed a few up but all of them need to come out. Most people don't t take the top bar off and then cannot get the radiator out. that's the important part of this. everything should come off using little force if any. if something does not move, check for fastners you may have missed. Always replace the thermostat when doing coolant service. They are inexpensive and often fail from overheating and age.