I decided to replace my catalytic converter last night and everything went pretty smoothly. However my precat o2 sensor no longer fits in the whole since the transmission pan is in the way. I think an angled o2 spacer should work to fix my issue. Any ideas where i can get one locally? Im in nj autozone, napa, advanced auto, and pepboys are most of the local shops. I called the stores but they dont seem to know what im talking about.
Also Will there be an issue with extending the o2 port?

 

You would be better off moving the O2 sensor bung, rather than spacing it out of the exhaust flow. You will lose accuracy doing that.

I have never seen and angled spacer though.

 

Moving the bung would that be drilling a new hole somewhere else? Or bending the current hole?
the only area that i could make a new hole would be on one of the header pipes that enter the cat. Would that work or do i need the sensor to read both exhaust?

 

What year is your truck?

 

Its a 1999

 

So your front O2 goes right into the cat. Did you change the trans pan, or some such, so that it doesn't fit now??

 

The transmission has a deep pan on it now. But its been on for over two years but the old o2 sensor port was angled up a little so it didnt have any issues.

 

Might have to drop the y-pipe down, install the O2, and put the pipe back up..... Will there be enough room for the sensor?

 

I think the o2 sensor wires might rub but it would fit if i dropped the y pipe.

 

Maybe pull the wires around out of the way somewhere, and secure them so they won't drop back?