Where are oxygen sensors on a 1992 Chevy 1-ton pickup truck 2-wd 350 engine?

Answer 1

To be honest, I am not sure, BUT, my 1990 Dodge has one oxygen sensor and it is located in the exhaust pipe on the right side (passenger side) of the engine not too far from the manifold. The sensor screws into a hole in the exhaust pipe. (Helpful hint: I squirted the thread part of the sensor with Liquid Wrench every day for a week to loosen up the rust).