Stubborn crank pulley bolt? Old school method... put your ratchet on it then find a way to lock the handle against something using an extension if you have to. You then barely crank the engine for a split second and this loosens the bolt using engine power (really starter). This can be dangerous so practice at your own risk.That crank pulley bolt is a B. I had a 2' breaker bar with a 3' pipe on the end attached to 2 feet of 1/2" drive extensions sticking out from the bolt. I twisted that thing 90 degrees before it broke the bolt loose.