The 2011 Jeep Wrangler offered in three models, Jeep Wrangler Sahara, Rubicon and Sport. 2011 Jeep Wrangler Sport 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 available Trac-Lok® limited-slip rear differential provides extra torque and grip during slippery, low-traction situations, such as