do I need the 6" socket wrench extender to change out my fog bulbs or is there some way to reach under and twist those suckers out?? Also, what size screw am I removing so that I can use the right one on the first try?

 

They are pretty far up there... so you'll probably need the extension.

The bolt is a 10mm, so use a 10mm socket and you'll be good to go....

 

I just reached up and twisted the connector out and inserted new bulb. Made it much easier when it was up on ramps.