Jeep Active Drive II includes a two - speed Power Transfer Unit and torque management. (jeepcheap.com)
Jeep Active Drive Lock includes all the features of Jeep Active Drive II and adds a locking rear differential for superior low - speed power for severe off - road conditions. (greencarcongress.com)
The same 4x4 capability is there, with a terrain management system and a two - speed power transfer unit. (cnet.com)