One more repair...

I have just one more repair I need to make to our truck before I consider it to be in good shape. Thus far I have replaced the airbag clockspring, shocks, and upper control arms. The truck error code system says that it needs the downstream oxygen sensor replaced. I have the sensor and just need to find the time to replace. My hope is that the gas mileage improves once I do this. It is a pretty easy fix I just need the truck to be cool underneath before I do the repair.