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2012 Jeep Wrangler Sport with dealer installed 4 1/2  lift kit 18 Black Mayham wheels and 35 Tires. Here we have a 2010 Jeep JK with 285/70/17 Duratrac tires on black 17x9 wheels 4.5 B.S. jeep is not lifted. This is a 2011 Jeep JK 285/70/17 Bridgestone Dueler A/T tires on BlackRock wheels, no lift.
On flat terrain, the Jeep lumbers along at 60 mph with a trailer in tow at a leisurely 1,700 rpm, thanks to a low 3.47:1 rear axle ratio and a 0.67:1 overdriven fifth gear. Once we headed up the grade, the Jeep downshifted to third gear and easily maintained 60 mph at 3,500 rpm with the cruise control engaged.