There are 4. They are located on ether side of the catalytic converters.
There are two, a left and right.
There are two on mine and it is totally stock.
In the exhaust, on either side of the catalytic converters.
One
No!
The transmissions are the same. The torque converters are different.
No, they are not interchangeable.
recommended fuel octane 2000 dodge 1500 3.9 liter Regular 87
before the catalytic converter
It will be above the catalytic converter.
what year is the dodge ram? 1999 dodge ram 1500 has the bank 1 o2 sensor located right after the catalytic converter