From Jeep press: Jeep Wrangler (TJ): 1997-2006. The 1997 Jeep Wrangler (TJ) looked very similar to the CJ-7. Indeed its 'retro' look was quite deliberate, but very different from a mechanical standpoint. Nearly 80 percent of the vehicle parts were newly designed. The TJ used a four-link coil suspension, similar to the Jeep Grand Cherokee, and featured a new interior, including driver and passenger air bags. The TJ retained several classic Jeep features such as round headlights, a fold-down windshield (first seen in 1940) and removable doors, as well as a choice of a soft top or removable hard top. A factory-fitted sport bar was also standard.
Enter the then-best-equipped Jeep ever – the 2003 Jeep Wrangler Rubicon. This vehicle earned the right to be called by the legendary trail name, as it was equipped with push-button-actuated locking front and rear Dana 44 axles, a 4:1 low-range transfer case, 32-inch tires and many more options not available on any production Jeep before it.
In 2004, the Jeep Wrangler Unlimited was introduced — a longer-wheelbase Wrangler, featuring 13 inches more cargo room and two inches of additional second-row legroom. While maintaining the unmatched open-air fun and 4x4 capability of the original Jeep Wrangler, the Unlimited model offered more refined on-road comfort, as well as even more versatility.