i may need to change my lower o2 sensor too. is that shield covering the wire riveted? and how would you fasten it back?

Yup its revit...what I did and Silverbullet was we drilled them out and replaced them with screws. Works great, but I'm going to be taking mine back off again and doing something else then riveting it back in.

cool. ill just put some short metal panheads in there for now. ill change the o2 next week. this time ill disconnect the battery. thanks for replying.

"this time ill disconnect the battery" yea I would recommend that lol..

no prob, have fun replacing it! Oh and if you don't have the tool to take the sensor off autozone lets you borrow theres, just incase you didn't know..