20/09/2008 04:54. As we told you in Part II, our Project DualSport JK has morphed into a four-door Unlimited because we needed better access to the back seat to get to cameras and other equipment. The upgrades to this vehicle continue. This month Mount Logan Off-Road installed Currie RockJock III front and rearends and PSC hydraulic ram-assist steering. The Poly Performance Stage 3 JK suspension was retained, although we installed poly's 4.5-inch Unlimited coil... // 4 Wheel Drive & Sport Utility Magazine