@@nevinkuser9892you really don’t, we did a timing belt and water pump on a j30 like 2 days ago and the crank pulley bolt came off with the Hercules 1/2 inch impact form harbor freight. And if that doesn’t work you can always pull fuel pump fuse and attach a breaker bar to the crank bolt wedged between the control arm with the crank pulley holder tool from auto zone that’s 20$ and crank the engine. The starter turns the motor and the breaker bar holds in place that’s normally enough force to break it free