On Saturday the truck had been running fine then it started running rough especially at idle. Had the check engine light and sometimes it would flash on and off. After I got home pulled the code and got P0133 and P0300. Monitored the long-term trim and the bank 1 trim was around -30. Truck was misfiring a lot. So after the long and painful process of getting the O2 sensor out. Replaced it yesterday evening. I used the break the sensor off with CRC freeze-off and heat to get that sensor out. Forget the O2 socket for removal.
Breaking the sensor allowed me to use a short socket and get my long 1/2 inch rachet on it. Glad that its over.

 

Glad you got it fixed. Saw your post on that other thread. Maybe this will fix his problem.
Thanks for letting us know. No telling how many people you've helped!