Product review (5 stars): Get this and watch the video - 10 minutes to change from NG to LPG- Seriously...
For those of you who have one of the new LG models you HAVE to watch this video: https://www.youtube.com/watch?v=WpgdK5uqWXE Instead of taking apart the entire thing I was able to change it out with 1 screw and a 10 mm wrench in about 10 minutes vs 6 hours. Tip: lay the dryer on it's front (use a blanket to protect it) then the new valve drops in straight vs laying on the ground.