Re: Chrome tailgate peice
If you are just taking it off to paint it, etc - you can pull it off of by prying gently from the outside. There is a seam (held on with some doublesided tape), and I was able to pull it off. The "base" of it can stay on the jeep, and you can just pull off the chrome piece. Just be sure not to pry back too close to the jeep, as you will pull the whole thing off.
If you need, let me know, and I will snap some pictures - now that I took mine off, can take it back off in just a minute or two...