a Dodge 1500 has 1 o2 senser but a 4x4 has 2 one post and a pre o2 senser but only one exaust pipe and an hd truck has 2 one for each pipes and 2 cat converters for each pipe
2, Before & after the catalytic converter.
1995-1999 3.9L, 5.2L, and 5.9L Dodge Ram 1500 has two O2 sensors. One upstream (before cat) and one downstream (after cat).
Yes
No, among other differences, the 1998 has two oxygen sensors while the 1994 has one. Also the 1998 computer controls the electronic governor in the trans.
It has two oxygen sensors. One at the front of the catalytic converter and one after it.
Exhaust system.
You can not bypass it. The oxygen sensors are required for a proper running engine.
The sensors on the valve body (inside the trans) are different. You will need to switch them.
2, one before and one after the catalytic converter
There are two. One immediatly before the catalytic converter and one after.
There are 2. one on each side of the catalytic converter.
There is no such thing as an oxygen speed sensor.