Downstream Sensor 2003 3.4

I'd like to replace my downstream fuel-air sensor; first of all there is a metal shield on it and can someone tell me how it comes off?

 

rear o2 sensor - DONE! | Tacoma World

*Note you only need to cut the shield if the nuts and studs are rusted that badly. I have changed mine twice now, and still have the shield in tact.

There is a sticky thread at the top of the 1st gen forum with a DIY post that has links almost anything you could want to work on.

 

Thanks so much for the link and the heads-up for the DIY list. I'm still new to the Tacoma and this forum. Have gotten a lot of work done getting this truck bulletproof; have a few projects left and it will be nigh perfect, as perfect as a 200K mile 5VZFE can be, but it seems to be a very sound engine. Again, thanks dude.