Duct tape in the socket after you break it loose to hold the screw.. grab the neighbor kid and give him 5 bucks to put his hand down there and save removal of the guard.. LOL.

Oh.. and I don't have the numbers handy.. but got mine off Ebay for about 40-45 bucks.. search engine here will give you proper part number.. just make sure it states bosch..

And once more.. lol.. Duralast seem to have a habit of "not".. Advanced Auto in mine.. life time warranty.. 65 bucks.. and running 6 months now without a hiccup.. bosch rides shotgun behind the seat though.. lol