Does anyone know how many o2 sensors are on a 96 Ranger?

Where are the o2 sensors located in a 96 mustang stick shift?

• My car won't pass smog and my check engine light is on, the test said my "system is too lean". I asked the local auto shop what the problem would be, they said more than less it's my o2 sensors. I'm going to order them but once I get them I don't know where they are on/in my car that I replace them. Does anyone know where they're located?

• Answer:

  They are where your headers meet the exhaust. Still on the headers but right near where they connect to the exhaust. They are very annoying to get to so you may want to use the loan a tool Advance or Autozone has for making the removal easier.