2009 Jeep® Wrangler Unlimited: More Doors, More Fun
Unlike the four-wheel-drive-only configuration of the standard Jeep Wrangler, the Jeep Wrangler Unlimited also is available in two-wheel drive. All Jeep Wrangler Unlimited models use the same tough body-on-frame construction, full-framed or half doors, exposed hinges, fold-down windshield and innovative removable convertible tops as their Wrangler siblings.
In addition, 2009 Jeep Wrangler Unlimited models add refinement to the mix with standard Hill Start Assist (HSA) that prevents rollback on a graded surfaces. Trailer Sway Control (TSC) also is available to monitor vehicle movement relative to the intended path and activates the Electronic Stability Program (ESP) if the trailer begins to sway outside set parameters.
While its legendary off-road capability is a given, the 2009 Jeep Wrangler Unlimited also boasts another feature that appeals to a growing number of customers: a spacious interior that takes comfort and convenience to new lengths.
Interior space in the 2009 Jeep Wrangler Unlimited equals 102.9 cu. ft., providing room for five adult passengers and delivering more cargo storage and seating configurations than any previous Wrangler.
Capability has always been the core attribute of the Jeep Wrangler, starting with the basics. While improving its legendary 4x4 Jeep capability, the 2009 Jeep Wrangler benefits from a frame that is 100 percent stiffer than its predecessor and a body structure that is 50 percent stiffer.
Suspension is a refined five-link coil setup with tuned shock absorbers. This setup works with a Dana 30 front axle and next-generation heavy-duty Dana 44 rear axle. The 2009 Jeep Wrangler Unlimited Rubicon model uses front and rear Dana 44 axles. The 2009 Jeep Wrangler Unlimited Rubicon model also offers an electronic-disconnecting front stabilizer bar, called the Active Sway Bar System, which delivers additional wheel travel for challenging terrain.
With high ground clearance combined with short front and rear overhangs, the 2009 Jeep Wrangler Unlimited is able to conquer incredibly challenging off-road obstacles, especially severe inclines. Off-road aficionados recognize the key numbers: for the Rubicon model, an approach angle of 44.4 degrees, breakover angle of 20.8 degrees and departure angle of 40.5 degrees. Underbody protection is provided by three skid plates – protecting the fuel tank, transfer case and automatic transmission oil pan.
The powerplant for the 2009 Jeep Wrangler Unlimited is a 3.8-liter V-6 engine producing 202 horsepower (151 kW) and 237 lb.-ft. (321 N•m) of torque, backed by a standard six-speed manual gearbox (not available on Wrangler Unlimited two-wheel-drive models) or an available four-speed automatic transmission.
2009 Jeep Wrangler Unlimited X and Sahara models are equipped with the second-generation Command-Trac® NV241 part-time, two-speed transfer case with a 2.72:1 low-range gear ratio. An optional Trac-Lok® limited-slip rear differential provides extra torque and grip during slippery, low-traction situations, such as driving over sand, gravel, snow or ice.
The 2009 Jeep Wrangler Unlimited Rubicon model is equipped with an Off-Road Rock-Trac® NV241 two-speed transfer case with a 4.0:1 low-range gear ratio, as well as electric front- and rear-axle lockers, an electronic sway bar disconnect and 32-inch BF Goodrich off-road tires.
On-road ride balance in the 2009 Jeep Wrangler lineup is refined, with minimal body lean when cornering and braking. Suspension geometry provides precise ride-and-handling characteristics, while lower suspension spring rates provide a softer, more comfortable on-road ride. An Electronic Stability Program (ESP), which aids the driver in maintaining vehicle directional stability in severe driving maneuvers on any type of surface, is standard on the 2009 Jeep Wrangler. The ESP system features three modes – “full on,” “full off” and “partial on.”
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