4WD mastery has always been the cornerstone of the Jeep® brand. All 2012 Unlimited models come equipped with a capable 4WD system as standard equipment. Holding true to a proud heritage.
A Jeep Trail Rated® badge is found on all 4x4s that pass a series of grueling tests designed to prove off-road capability on the world’s most demanding terrain.
There are five main categories of testing:
- Traction
- Ground clearance
- Water fording
- Maneuverability
- Articulation
Some of the main advantages Wrangler and Wrangler Unlimited have to offer include:
- Most traction of any Wrangler ever
- Best-in-Class water fording capability+— through up to 30 inches of water
- Best-in-Class ground clearance, approach and departure angles+
- Best-in-Class turning diameter+, shortest length and wheelbase
Trail Rated®
Trail Rated®/shared/flash/cross_vehicle/capabilitytour/trailrated.swftrue- Trail Rated Overview®
- Jeep® Trail Rated® vehicles are designed to perform in a variety of off-road conditions identified by five performance categories.
- Overview
- Ground Clearance
- The ability to drive over large obstacles or logs, or whatever, in combination with approach, departure and breakover angles.
- Ground Clearance
- Distance from chassis to ground
- Articulation
- The ability to keep tires in contact with the road, providing traction to climb over large obstacles.
- Articulation
- Suspension's ability to flex
- Maneuverability
- The ability to navigate around obstacles that are tightly situated.
- Maneuverability
- Ability to thread the gap
- Traction
- The ability to transfer power to the road or trail along with the ability of the suspension to keep the wheels in contact with the terrain.
- Traction
- The opposite of slipperiness
- Water Fording
- The ability to cross a specific depth of water at a specific speed.
- Water Fording
- Go as slow as possible, as fast as necessary
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- Rock-Trac® 4WD
More control. More torque at the wheels. Goes virtually anywhere you point it. The Rock-Trac® 4:1 low-gear ratio allows Wrangler Unlimited Rubicon to crawl at a lower speed but with greater increase in torque at the wheels, making it easier to trek over large rocks and timber. The main case joint is clamped by 18 bolts for added structural stiffness. Rock-Trac is a part-time system and is not recommended for use on dry pavement.
- Command-Trac® 4WD
No-nonsense — tough as railroad spikes. When four-wheel power is required, like off-roading or in slick conditions where more traction is needed, the second-generation Command-Trac® NV241 kicks into action and delivers equal power to all four corners, getting through the rough stuff with ease. The main case joint is clamped by 18 bolts for added structural stiffness. Command-Trac is a part-time system and is not recommended for use on dry pavement.
- TRAC-LOK® DIFFERENTIAL
The Trac-Lok® rear differential is available on select Wrangler Unlimited Sport and Sahara models. It's a torque-sensitive mechanical unit that works to maintain traction in slippery or rough conditions. Trac-Lok automatically distributes the available rear torque to the rear wheel that provides the most traction, thus helping to reduce wheel spin caused by lack of traction in the other rear wheel.
- Angles
Wrangler Unlimited offers added Jeep vehicle capability with 10.5 inches of ground clearance (Rubicon), a 44.4-degree approach angle, a 40.5-degree departure angle and a 20.8-degree breakover angle.
Rubicon has Best-in-Class ground clearance+ along with Best-in-Class approach and departure angles+. The front air dam is removable to provide added flexibility (better approach angle) when off-roading.
- Electronic Sway Bar Disconnect
This system allows you, by the flip of a switch, to automatically disengage the sway bar when driving under 18 mph in mode. The front wheels can then drop and compress up to 25 percent further on Wrangler Unlimited Rubicon. On a 20-degree RTI ramp Rubicon scored a remarkable 644 with its standard Electronic Sway Bar disconnected (and a respectable 484 connected).
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