freedom drive II of JEEP 4X4
An electronically controlled coupling, which is attached to the rear differential, is the heart of the Freedom Drive II system. The electronic control module processes signals from the wheel speed sensors and the accelerator pedal to determine how much torque to transfer to the rear wheels, then sends an electrical current to the ECC that is proportional to the amount of torque required. Recommended for true off-road situations including steep grades, wheel lift and rock or log climbing, the Freedom Drive II Off-Road Package includes a second-generation continuously variable transaxle with a 19:1 crawl ratio (CVT2L) that engages when the off-road mode is activated