If I am not mistaken, back in 86 youcould still get the J truck which was also called a comanche at one time in its production life. There might be where the confusion is. I had an 87 XJ which had the AMC title, it really doesn't mean anything. I believe there is just a lil confusion on their part as to what vehicle you are talking about. Besides that... is it really worth getting all twisted about it.
90 Comanche thing. Exo-cage, tube bed, with a few other things done Here is a link to some pics of it
If you have to ask why... Its a truggy thing and you wouldn't understand