Originally Posted by GaleForce

That sounds like the same one I had trouble with. It was a bugger and took the longest to get. I blasted it with penetrating oil and used 3/8" tools to access it through the engine bay. I also used part of the handle from my floor jack to put on the end of my breaker bar for more leverage.

I'm sure you'll have no problems removing it today with a bit of sleep and fresh eyes.