Be careful getting the keyway lined up with the woodruff key in the crank shaft. And you are going to need a big a$$ breaker bar to break the crank bolt loose. The best way to hold the engine crank from turning is to remove one of your tq converter bolts and replace it with a bolt about 2" long with a nut threaded all the way up to the shoulder (end of threads) just in case it breaks off you'll have something to get hold of to get it out. Tq. specs for the crank bolt is 150 ft pounds + 90%. Also when removing your belt, when you pull up the tension pulley there is a small hole under it to insert something in to hold it up, I used an allen wrench.