Two Piece Propeller Shaft
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, 2002 Chevrolet Cab & Chassis Silverado, and 2001 GMC Sierra. However, it is still accessible from the selected car via links, so may be relevant.
There are 3 universal joints used on the two piece propeller shaft. A center bearing assembly is used to support the propeller shaft connection point, and help isolate the vehicle from vibration.