WARNING: This page is about a different car, the 2004 Ford Ranger and 2003 Ford Ranger. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Drive Belt Routing (3.0L - Ranger With A/C)
Courtesy of FORD MOTOR CO.
Fig 2: Drive Belt Routing (Ranger - 3.0L Without A/C)