oh man, I had the worst day when I was trying to take off my bolts for my calipers, I mean what SIZE is it?? jeez......id like to replace it with an allen head bolt that torx head is just crap. I finally had to remove the caliper by the bracket bolts to get it off......Imagine reinstall in that manner....it was tough...now i gotta get a torch to heat it up....its still stripped. just havent had time to do it lately. Have you driven a ford, lately. remember those commercials..... I hate minnesota winters.....