[crosby]

Hey Krue, thanks for the message. You may be right. I read somewhere they put these failsafes in so it is very difficult to have an accident by putting the wrong regulator on (reverse threads for acetylene) etc. I will post what I find out tomorrow here in case anyone is interested. I just want to get my plow frame and bumper off the front so I can start switching stuff over to my "new" frame. Thanks a lot!