Last month we took a look at the BW 44-44 and 44-45 series of transfer cases found in late-model Ram pickups. We continue this month with a look at the electronics that make the 44-44 function. A brief review on this unit leads us to an electronically controlled active full-time transfer case.
Looking at the BorgWarner 44-44 and 44-45 transfer cases, we see an evolutionary change that started with the BW4405 and 4411 and has now reached this level of development. The design uses a wet-clutch pack in the transfer case to split torque between the rear and front axles.