Check out this thread for discussion and a video.
The video link did not work from my iPad, but it should work from a computer.
nice trailer , I have been looking for something like that. I don't want to spend 5 grand or more for something I wont use that often.
Hydraulics are slick, but a $60 electric winch and pulley will do the same job. You just need to run sufficient power from your jeep's battery. I power a home made "load handler" like this.