man I can soooo relate to this..jus two weeks ago..I was fighting with my damn monte adn those pesky old rear bumper bracket bolts that jus didnt want to jsu unscrew and come off...no matter how much wd40 and liquid wrench I sprayed and poured on them..I still havent got the center one off..so far its winning the fight..I jus had to walk away only to fight another day.....I feel ur pain!!!