Section 52 (Engine - 3.9L): Crankshaft: Description
WARNING: This page is about a different car, the 2003 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
The crankshaft (Fig 1 ) is of a forged steel splayed type design, with four main bearing journals. The crankshaft is located at the bottom of the engine block and is held in place with four main bearing caps.