Yes, on the rear axle, on the trans, and possibly at the front wheels.
4
The 2001 Dodge Durango has a 4-speed automatic.
A 2007 Durango has four oxygen sensors.
In the rear of the drum
Automatic idle speed, yes. It is on the throttle body.
There are 2 speed sensors, check the one on the rear differential also.
The speedometer signal comes from the ABS sensor on top of the rear axle. The trans also has speed sensors on it for trans shifting.
On top of the rear axle. This is from pictures I've seen from guy that replaced their own sensors.
The 2001 Dodge Durango has a V8 engine.
Exhaust manifold(s).
The transmission speed sensors tell the trans computer how fast the inside parts of the trans are turning. The wheel speed sensors tell the ABS computer how fast the wheels are turning.
AnswerThere are two, one on either side of the catalytic converter.