X10 on the floor jack. did everything before that...The drives door i did the lift, swing back and forth that took me 3 days to get it off . I tried the floor jack on the passenger door and took about 4 minutes to pop it off. Be prepared to catch that sucker though.
Floor jack, put a piece of wood placed under the door as close to the hinges as possible, jack it up slowly. ur jeep will start to raise up. go stand on the door sill and bounce up and down, jack a bit more, bounce a bit more and the door will pop right off.