One 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.
A 1 piece propeller shaft uses a splined slip joint to connect the driveline to the transmission or transfer case.