Transfer Case
WARNING: This page is about a different car, the 2006 Ford Pickup, 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
The New Venture Gear transfer cases are either manual or electric shift. These transfer cases are specifically designed to withstand high engine torque loads under all modes of operation.
When in the 4x4 mode of operation, torque is transferred from the main input shaft through a high load capacity chain link belt to the transfer case front output shaft. The front output driveshaft then transfers this torque to the front differential.