Where are the 02 sensors located on a 2003 3.9L Dodge Dakota 02?

On a 2003 3.9L Dodge Dakota, the O2 sensors are located in two primary positions: the upstream (pre-catalytic converter) sensor is found on the exhaust manifold, while the downstream (post-catalytic converter) sensor is located on the exhaust pipe after the catalytic converter. The upstream sensor monitors the air-fuel mixture, while the downstream sensor checks the catalytic converter's efficiency. Accessing these sensors may require lifting the vehicle for better visibility and reach.