Interesting... I tried my impact but they were far to tight on there to budge at all. Once I used the breaker bar I did finish it off with the impact though... you are right, it is a ton easier.
I wonder if my issue is all the oxidation that is built up on the arm is preventing me from getting a good grip with the socket. I am going to head to Harbor Freight tomorrow to see if they have a knock-off of the Snap-on low profile socket that I saw. If not I'll get a cheap socket and just grind off the bevel and see if that works for me.