There are not two catalytic converters. Working towards the muffler from the flange, you have a RESONATOR, a CATALYTIC CONVERTER and finally a MUFFLER.
There are 3 oxygen sensors; one in the front exhaust manifold, one in the rear exhaust manifold, one AFTER the catalytic converter. The 2 exhaust manifold sensors are the same BUT the catalytic converter one is different. Also, the 2 exhaust manifold sensors have heaters in them, while the converter one doesn't.
The catalytic converter is nothing more than a wide spot in the exhaust line with some specialized material that promotes the burning of any remaining hydrocarbons. They are easy to replace but usually don't need replacing unless your engine burns oil or you have been using leaded fuel. FRONT CONVERTER IS INTEGRAL WITH MANIFOLD AND MUST BE REPLACED AS A UNIT.
check the transmission fluid level, It sounds like a transmission problem ?
It is mounted in the exhaust system. Start at the exhaust manifold and work backward toward the catalytic converter. It is more than likely mounted in the exhaust manifold right at the engine. It may also be mounted where the two exhaust pipes come together.
Counterclockwise
.054 inch ( according to motorcraft . com )
A plugged catalytic converter, a restricted exhaust, a plugged air filter, a restricted air intake (mouse nest).
remove the alternator and bracket it is under the bracket
Remove any bolt on pulleys, remove center bolt counterclockwise, remove the harmonic balancer with proper puller available for rent or sale at your local auto parts store.
drop the sub-frame, sorry bud one or the other!
we would need an bit more info? engine 4cyl, 6cyl? 2wd 4wd?
1995-1996: Base; 6Cyl 3.8L GAS This might work but the part is $230.