The 4-door Jeep Wrangler Unlimited, AKA the JK, has boosted the off road industry tremendously. It has swayed 4x enthusiast who once dismissed the Wrangler because of their previously smaller size and allowed them to get into a vehicle that fits both their on and off road needs. As the industry continues to roll out new products for the family crawler, we spied this new full float Pro Rock 60 from Dynatrac. The new axle is a direct bolt-in replacement for the rear of the JK and is completely compatible with the ESP system. A full floating rear axle may seem a bit overkill, but when you start adding on body armor, 40-inch plus tires, and pack it full of gear and people; you have a vehicle weight that is comparable to a ¾-ton truck! For more info on the Dynatrac axle check them out at www.dynatrac.com