Four-wheel drive is via Command-Trac®; Liberty Limited models received Selec-Trac Full-Time 4WD and 3.73:1 axles as standard. For the 2005 model year, Liberty was offered with an optional 2.8L turbo diesel engine and six-speed manual transmission.

In 2004, the Jeep® Brand offered a “stretched” version of the TJ, Wrangler Unlimited. Ten inches longer in wheelbase (103-inch) and 15 inches longer in overall length, the Unlimited offered two inches more rear leg room, more interior space, and greatly enhanced on-road handling.

In 2005, the Jeep Brand introduced the Rubicon Unlimited–it featured the wheelbase of the Unlimited and off-road features of the Rubicon.

The all-new Grand Cherokee (WK) debuted in 2004 as a 2005 model. This revamped Grand Cherokee combined power, luxury and a significantly quieter, more comfortable ride.

The ground-up transformation continued with a choice of three power plants including the mighty 330-horsepower 5.7L HEMI® V8 engine. The 2006 Jeep® Grand Cherokee SRT8® featured a 6.1L HEMI V8 with 420 horsepower and 420 pound-feet of torque, 20-inch lightweight forged wheels and four-piston Brembo brakes.

The 2006 Commander was the first seven-passenger Trail Rated® Jeep® 4x4 vehicle. Based on the ‘05 Grand Cherokee platform, the boxy Commander was only slightly longer than the WK (two inches), but a three-inches-higher stepped roofline and stadium-style seating arrangement allowed for an extra row of seats in back.

Basic power and drive train offerings were the same as the Grand Cherokee (WK). As with most Jeep® Brand 4x4 models, the Commander carried the Jeep Trail Rated® badge. To be Trail Rated, a vehicle must meet performance standards in traction, articulation, ground clearance, maneuverability and water fording.

The vehicle is front-wheel-drive with a choice of two available electronically controlled 4x4 systems for all-weather use: Freedom Drive I, a full-time system for on-road use, or Freedom Drive II®, that is off-road capable.

The vehicle is front-wheel-drive with a choice of two available electronically controlled 4x4 systems for all-weather use: Freedom Drive I, a full-time system for on-road use, or Freedom Drive II®, that is off-road capable.

The 2007 Wrangler model's signature round headlamps, iconic seven-slot grille, solid axles, removable doors, exposed hinges, fold-down windshield, innovative removable and convertible tops all honor Jeep® Brand heritage while signaling new levels of capability and versatility.

For 2011, all Wrangler models boast an all-new interior, and Sahara models feature a more premium body-color hardtop.

Wrangler is the ultimate, all-American 4x4 freedom machine–the Jeep® Brand’s modern-day descendant of the original, heroic Willys MB.

On the inside, seat comfort, cargo capacity and passenger room were improved. The Sky Slider® Roof available on Liberty delivered a true Jeep® Brand open-air experience.

The venerable Liberty was retired in 2012 and replaced in the lineup by the All-New 2014 Jeep® Cherokee.