Your's would be a TJ, which is a design series built from '97 thru '06. The various designations such as Sport, Rubicon, etc., are the different equipment and trim levels, Rubicon being the top of the line. Also, in '04 & '05, they offered a Willys Edition TJ, which had military type markings and trim. I have a Willys. I'm sure other on the forum here can better explain the various models.