o2 sensors

[RPM427]

I finally got it lose yesterday. I was using that socket with the side split, but I was giving up some torque with it, so I cut the wires off and used a 6 pt deep socket. I had a 3 ft long breaker bar and still nothing. I then placed the floor jack under the car and used it to push up on the breaker bar. I heard some wieght being relived off of the jackstands and then BANG. The sensor finally broke free. 3 ft long lever * 3400 lbs car is a lot of force. The threads were not damaged at all. And I was spraying the sensor with PB catalyst fastener lossener for 3 days letting it soak in. After 3 days of strugling I finally won the battle.