Driver Side upstream 02 sensor replacement

[jeiholzer]

I have a 2007 Yukon XL and I am replacing the upstream O2 sensors. The right passenger side is easy to reach the wheel well. But the left driver's side is not so easy. Anyone have any suggestions/advice?

 

[Doubeleive]

I have a 2007 Yukon XL and I am replacing the upstream O2 sensors. The right passenger side is easy to reach the wheel well. But the left driver's side is not so easy. Anyone have any suggestions/advice?

02 sensor socket and/or crows foot and tilting head ratchet