Smoothy,
1. I suspect you want the track width of your trailer to match your JK so that the trailer more easily follows your JK wheel ruts. That does make it easier to tow off road however, the trailer still does not track around corners only in a perfectly straight track. In the real world being a bit off in track width is not a problem.
2. I suspect that you want the trailer to have the same bolt pattern as your JK so you can use the spare from the JK on the trailer. This is a very good idea and so I ordered the correct hubs when I built my trailer. But, (curses!
) the backspacing on the Jeep stock rims would not allow the Jeep wheels to be used on the trailer. BE SURE TO CHECK THIS BEFORE SPENDING MORE MONEY. My remedy was to buy 2.5" offsets that bolt to my hubs on the trailer to allow the Jeep spare to be used. I am ok with this because it is a "temporary" fix to allow me to get to a tire store. I just need to be sure to bring the offset with me when I use the trailer.
3. Now I have a good fix for a flat tire on the trailer when towed by my Jeep TJ
. HOWEVER, I purchased a new Jeep Cherokee Trailhawk and the wheel bolt pattern is not the same as the Jeep TJ and the trailer. So, the moral to the story might be to just have a spare tire for the trailer no matter what bolt pattern it has.
Good Luck,
Vince