To be certain, you should:
* Consult your owner's manual: This is the best source for the specific location for your Durango's engine.
* Use a repair manual specific to your year and engine: Chilton's or Haynes manuals often have detailed diagrams showing sensor locations.
* Search online for diagrams: Search using "2000 Dodge Durango [your engine size] camshaft position sensor location" on Google Images or YouTube. You may find photos or videos showing exactly where it is.
Keep in mind that working on the engine can be dangerous. If you are not comfortable doing this yourself, take it to a qualified mechanic.