Ideas on getting loose? Impact wrench (450 ft lbs), and 4' breaker bar haven't been able to budge. I also tried resting the breaker bar against the bottom of the bumper and cranking the starter and nothing will budge it loose. Thoughts? Mike Bond 1983 UrQ WX 2002 Audi A4 1.8T 2002 GMC Yukon 2004 Mitsu Evo RS