Agree to the above. I have never needed to use air on a car. Air only speeds things up, in terms of torque, a good breaker bar with a pipe on it will loosen almost anything. Spray some PB blaster on it and let it soak for a night. If it still will not come off heat it with a torch for a few minutes and try again. Just because it went on with 60lbs of torque does not mean that is all it will take to get it off. With rust, corrosion and other things, it might take a lot more. Never take bolts off with your torque wrench, you will damage it.