Here’s a decent article on the J8 and also the AIL Storm Mark III.
www.allpar.com
Ive seen and driven quite a number of imported J8‘s. Definitely more truck like than a JK.
The later ones had a totally different air cleaner set then this article describes.
The J8 had a really cool rear swing gate. It was basically JK sheet metal fastened to an external skeleton of rectangular steel tubing. Waaaay beefier than stock JK.
I always wanted to see if the J8/JK gates were a direct swap but never was able to try it.